EN： The verb 'need' is a transitive verb followed by a direct object. In this sentence, 'some help' acts as the object, indicating what is required.
中文： 动词“need”(需要) 协议是一个及物动词，后面接直接宾语。在此句子中，“some help”(一些帮助) 作为宾语，表示所需要的东西。
I need some water after the long run.
长跑之后我需要一些水。
EN： The preposition 'with' is used here to specify the area or subject in which help is needed. The pattern is 'need help with + noun/gerund'.
中文： 介词“with”在此用于指定需要帮助的领域或主题。常用句型为“need help with + 名词/动名词”。
Do you need help with your homework?
你需要作业方面的帮助吗？
EN： In many English-speaking cultures, starting a request with 'I need some help' is a direct but polite way to ask for assistance from a friend. Adding 'Hey [Name]' makes it sound casual and natural.
中文： 在許多英語系國家，以「I need some help」作為請求的開頭，是對朋友尋求協助時直接且禮貌的方式。加上「Hey [名字]」會讓語氣聽起來更隨和且自然。
EN： Wh-questions with 'do' support: In English, when asking a question with a question word (What) and a main verb (know), we use the auxiliary verb 'do' before the subject.
中文： Wh-特殊疑问句与助动词 do：在英语中，当使用疑问词（如 What）且句中有名词性实义动词（如 know）时，必须在主语前加上助动词 do 来构成疑问句。
What do you want to eat for dinner?
你晚餐想吃什么？
EN： The infinitive 'to know': The verb 'want' is followed by a 'to-infinitive' (to + base verb) when expressing a desire to perform an action.
中文： 不定式 'to know'：动词 'want'（想要）后面接另一个动词时，需使用不定式结构（to + 动词原形）来表示想要做的动作。
I want to learn how to play the piano.
我想学习怎么弹钢琴。
EN： In English-speaking cultures, starting a helpful response with 'Sure' or 'Of course' is a common way to show friendliness and willingness to assist before asking for more details.
中文： 在英語系國家，在詢問細節之前，先以 'Sure' 或 'Of course' 開頭是非常普遍的做法，這能展現出你的友善以及樂於助人的態度。
EN： Present Perfect Continuous (have been + V-ing): Used to describe an action that started in the past and is still continuing in the present, emphasizing the duration or ongoing nature of the activity.
中文： 现在完成进行时 (have been + V-ing)：用于描述从过去开始并持续到现在的动作，强调该活动的持续性或过程。
I have been waiting for the bus for twenty minutes.
我已经等公交车等了二十分钟了。
EN： The conjunction 'since': Used to indicate a starting point in time. It is often followed by a clause in the Simple Past tense to mark when the ongoing action began.
中文： 连词 'since' (自从)：用于表示时间的起点。后面通常接一般过去时的从句，用来标记该持续动作是什么时候开始的。
She has been working here since she graduated.
她自从毕业后就一直在很久这里工作。
EN： In many North American cities, driving is the primary mode of transportation due to urban sprawl. When someone says they have been 'driving everywhere,' it often implies a reliance on a personal vehicle because public transit might be less convenient or unavailable.
中文： 在許多北美城市，由於城市擴張，開車是主要的交通方式。當有人說他們「到處開車」時，通常暗示他們依賴私家車，因為大眾運輸可能不夠方便或無法到達某些地方。
EN： The modal verb 'must' is used here to express a logical deduction or a strong belief based on evidence, rather than an obligation.
中文： 情态动词 'must' 在此处用于表达逻辑推论或根据依据得出的强烈推断，而非表示义务（必须）。
You have been working all day; you must be tired.
你工作了一整天，现在一定很累。
EN： The preposition 'with' is used to introduce a reason or a contributing factor that explains the situation mentioned earlier.
中文： 介词 'with' 在此处用来引出原因或促成因素，解释前文提到的情况。
With the rain starting, we should head inside.
因为开始下雨了，我们应该往室内走。
EN： In many North American cities, owning a car involves significant hidden costs beyond the vehicle itself, such as high parking fees in downtown areas and fluctuating gas prices, which makes public transport a common topic of financial discussion.
中文： 在許多北美城市，養車除了車輛本身外，還涉及高昂的隱形成本，例如市中心昂貴的停車費和波動的油價，這使得大眾運輸成為財務討論中的常見話題。
EN： The use of 'how do I' is a standard structure for asking for instructions or methods. It uses the auxiliary verb 'do' to form a question in the present simple tense.
中文： 使用“how do I”是询问指令或方法的标准结构。它使用助动词“do”来构成一般现在时的疑问句。
How do I open this bottle?
我该怎么打开这个瓶子？
EN： The preposition 'for' is used here to indicate purpose or destination, specifying which type of transportation the ticket is intended for.
中文： 介词“for”在这里用来表示目的或对象，明确指出这张票是用于哪种交通工具。
I bought a gift for my sister.
我买了一份礼物要送给我妹妹。
EN： In many Western cities, 'Exactly!' is a very common way to show active listening and agreement in a conversation. Regarding public transport, asking 'how do I buy a ticket' is essential because payment methods vary greatly between cities (some use apps, some use cash, and some are completely cashless).
中文： 在許多西方城市，「Exactly!」是對話中展現積極傾聽和認同的常見方式。關於大眾運輸，詢問「如何買票」非常重要，因為各城市的支付方式差異很大（有些用 App，有些收現金，有些則完全不收現金）。
EN： The modal verb 'can' is used here to express possibility or options available to the speaker. It is followed by the base form of the verb.
中文： 情态动词 'can' 在此处用于表达可能性或可供选择的方案。其后接动词原形。
You can pay by credit card or cash.
你可以用信用卡或现金支付。
EN： The coordinating conjunction 'or' is used to connect two equivalent alternatives: 'buy a ticket' and 'use an app'.
中文： 并列连词 'or' 用于连接两个平行的选择：'购买车票' 与 '使用应用'。
We can walk to the park or take a taxi.
我们可以走路去公园，或者打车去。
EN： In many modern cities, mobile apps have replaced physical tickets as the primary way to pay for transit. Some systems even offer 'contactless' payment where you can tap your credit card or phone directly at the gate.
中文： 在許多現代城市中，行動應用程式已取代實體票券成為主要的支付方式。有些系統甚至提供「感應式」支付，讓你可以直接在閘門感應信用卡或手機。
EN： The 'There is/are' structure is used to indicate the existence of something. In questions, the verb 'is' or 'are' moves to the front of the sentence.
中文： “There is/are”结构用于表示某物的存在。在疑问句中，动词“is”或“are”会移至句首。
Is there a train station near here?
这附近有火车站吗？
EN： Relative Clauses with 'that': The word 'that' introduces a relative clause that provides more information about the noun 'monthly pass'. Here, it acts as the subject of the verb 'saves'.
中文： 使用“that”的定语从句：单词“that”引导一个定语从句，为名词“monthly pass”（月票）提供补充信息。在这里，它作动词“saves”的主语。
I want a phone that has a good camera.
我想要一部拍照功能强大的手机。
EN： In many Western cities, public transportation systems offer various passes (daily, weekly, monthly) to encourage regular use. These are almost always significantly cheaper than paying for individual trips, reflecting a common urban living strategy to manage expenses.
中文： 在許多西方城市，大眾運輸系統提供各種定期票（日票、週票、月票）以鼓勵民眾經常使用。這些票種通常比單程票便宜得多，反映了城市生活中管理開支的常見策略。
EN： Comparative Adjectives with 'much': To emphasize a large difference between two things, use 'much' or 'far' before the comparative form of an adjective (e.g., cheaper, faster).
中文： 比较级形容词与 much 的用法：为了强调两者之间巨大的差异，可以在形容词比较级（如 cheaper, faster）之前加上 much 或 far，表示“得多”。
Taking the train is much faster than driving during rush hour.
在高峰时段，坐火车比开车快得多。
EN： Gerunds as Objects of Comparison: The word 'buying' is a gerund (verb+ing acting as a noun). In comparisons, the two things being compared should be in the same grammatical form. Here, 'the monthly pass' (noun) is compared with 'buying single tickets' (gerund phrase).
中文： 动名词作比较对象：单词 buying 是动名词（即“动词+ing”用作名词）。在比较句中，被比较的两个对象应保持语法形式一致。这里是将“月票”（名词）与“购买单程票”（动名词短语）进行比较。
Walking to work is healthier than taking the bus.
步行上下班比坐公交车更健康。
EN： In many Western cities, public transportation systems offer 'monthly passes' or 'commuter passes' that provide unlimited travel for a fixed price. This is often significantly more economical for daily commuters compared to 'single tickets' or 'one-way fares'.
中文： 在許多西方城市，大眾運輸系統提供「月票」(monthly passes) 或「通勤票」(commuter passes)，讓乘客以固定價格無限次搭乘。對於每日通勤者來說，這通常比購買「單程票」(single tickets) 划算許多。
EN： Linking Verbs (Sensory Verbs): The verb 'sound' is a linking verb used to describe an impression. It is followed by an adjective (great) rather than an adverb to describe the subject.
中文： 系动词（感官动词）：动词 'sound' 是系动词，用于描述印象。其后接形容词（great）而非副词，用来修饰主语。
That idea sounds interesting.
那个主意听起来很有趣。
EN： The phrase 'What about...?' is used to introduce a new topic or to ask for information about something specific in a conversation.
中文： 句型 'What about...?' 用于在对话中引入新话题，或询问关于某个特定事物的信息。
What about your new job?
你的新工作怎么样？
EN： In many English-speaking countries, 'What about...?' is a very common and polite way to shift the focus of a conversation or ask for a recommendation without starting a formal new question.
中文： 在許多英語系國家，'What about...?' 是一種非常常見且禮貌的方式，用來轉移對話焦點或詢問建議，而不需要開啟一個正式的新問題。
EN： The phrase 'every + [number] + [plural noun]' is used to describe the frequency of an event, indicating how often something happens at regular intervals.
中文： 句型“every + [数字] + [复数名词]”用于表达事件发生的频率，表示某事按固定的时间间隔定期发生。
The bus comes every twenty minutes during rush hour.
高峰时段公交车每二十分钟一班。
EN： The verb 'run' is used here to describe the operation or scheduled service of public transportation like trains, buses, or ferries.
中文： 动词 run 在此处用于描述公共交通工具（如火车、公交车或轮渡）的运营或班次安排。
Do the ferries run on weekends?
轮渡在周末运营吗？
EN： In many major cities, a ten-minute interval is considered a frequent and reliable service, often referred to as 'high-frequency transit.'
中文： 在許多大城市，十分鐘一班被認為是頻繁且可靠的服務，通常被稱為「高頻次運輸」。
EN： The Zero Conditional is used to talk about general truths or habits. In this sentence, 'if' introduces a condition using the present simple tense, followed by a main clause also in the present simple.
中文： 零条件句（Zero Conditional）用于描述客观事实或习惯。在此句中，'if' 引导一个使用一般现在时的条件从句，后面的主句同样使用一般现在时。
If you heat ice, it melts.
如果加热冰，它就会融化。
EN： The auxiliary verb 'do' is used to form questions in the present simple tense for the first-person singular 'I'.
中文： 助动词 'do' 用于第一人称单数 'I' 的一般现在时疑问句中。
Do I need a passport for this trip?
这次旅行我需要护照吗？
EN： In many North American cities, 'downtown' is used as an adverb, so you don't need a preposition like 'to' (e.g., 'go downtown' instead of 'go to downtown'). Transferring between lines is common in large transit systems and often requires a specific card or ticket validation.
中文： 在許多北美城市，'downtown' 常被當作副詞使用，因此前面不需要介係詞 'to'（例如說 'go downtown' 而非 'go to downtown'）。在大眾運輸系統中，換乘線路很常見，通常需要特定的票卡或過卡驗證。
EN： The verb 'transfer' is used as an intransitive verb here, followed by the preposition 'at' to indicate a specific location and 'to' to indicate the destination or target line.
中文： 动词“transfer”(换乘/转移) 在此作为不及物动词使用，后接介词“at”表示特定地点，接“to”表示目的地或目标线路。
You need to transfer at the next stop to the airport shuttle.
你需要于下一站换乘机场接驳车。
EN： The use of the Zero Article or 'the' with transit lines: When referring to specific subway or train lines by color or name, 'the' is typically used (e.g., the blue line, the red line).
中文： 交通线路的冠词用法：当使用颜色或名称指代特定的地铁或火车线路时，通常会加上定冠词“the”（例如：the blue line 蓝线）。
Take the green line to reach the museum.
乘坐绿线即可到达博物馆。
EN： In many major cities, transit lines are color-coded (Blue Line, Red Line, etc.) to make navigation easier for commuters and tourists. 'Central Station' is a common name for the primary hub in a city's rail network.
中文： 在許多大城市，交通線路會以顏色編碼（如藍線、紅線等），以便通勤者和遊客辨識。「Central Station」（中央車站）通常是指城市鐵路網絡中最主要的轉運中心。
EN： The sentence uses a 'when' clause as a subordinating conjunction to indicate time. It connects the main question 'Is the fare the same' with the condition 'when you transfer between lines'.
中文： 本句使用 'when' 引导的从属从句作为时间状语从句。它将主要疑问句“票价是否相同”与条件“当你在不同线路间换乘时”连接起来。
Do you need to show your ID when you buy a ticket?
你买票的时候需要出示身份证吗？
EN： Subject-Verb Inversion in Questions: In English, to form a question with the verb 'to be', the verb (Is) is placed before the subject (the fare).
中文： 疑问句中的主谓倒装：在英语中，若要使用 be 动词造句，动词 (Is) 必须置于主语 (the fare) 之前。
Is the train station far from here?
火车站离这里远吗？
EN： In many modern transit systems, 'transfers' are often free within a certain time window (e.g., 2 hours) if using a smart card or app. However, in some older systems or between different transit agencies, you might have to pay a small transfer fee or a new fare.
中文： 在許多現代交通系統中，如果使用智慧卡或應用程式，在特定時間內（例如 2 小時）轉乘通常是免費的。然而，在一些較舊的系統或不同交通營運商之間，可能需要支付少額的轉乘費或重新購票。
EN： The Present Simple tense is used here to state a general fact or a rule. In this case, the verb 'covers' takes an 's' because the subject 'one ticket' is third-person singular.
中文： 一般现在时用于陈述事实或规则。在此句中，动词 'covers' 加了 's'，是因为主语 'one ticket' 是第三人称单数。
This pass allows unlimited travel for one day.
这张通行证允许一天内无限次乘车。
EN： The preposition 'within' is used to indicate that something happens inside a specific period of time or a limit.
中文： 介词 'within' 用于表示在特定的时间范围或限制之内。
You must complete the transfer within thirty minutes.
你必须在三十分钟内完成换乘。
EN： In many major cities, public transit systems use 'integrated fares' where one payment allows passengers to switch between buses and trains for free or a reduced price within a specific time window (usually 90-120 minutes).
中文： 在許多大城市中，大眾運輸系統使用「整合票價」，即支付一次費用後，允許乘客在特定時間窗口內（通常為 90-120 分鐘）免費或以優惠價格在巴士和火車之間轉乘。
EN： The phrase 'What about...?' is an elliptical construction used to introduce a new topic or ask for information about something related to the current conversation without repeating the entire question structure.
中文： “What about...?”是一个省略句结构，用于引入新话题或询问与当前对话相关的信息，而不需要重复完整的句子结构（如：What is the situation with...?）。
What about your sister? Is she coming too?
那你姐姐呢？她也要来吗？
EN： Compound nouns like 'ride-sharing apps' use a hyphen to connect words that function together as a single adjective modifying the noun 'apps'.
中文： 复合名词如“ride-sharing apps”使用连字符将共同充当单一形容词的单词连接起来，用以修饰后面的名词“apps”。
I prefer using eco-friendly products.
我更倾向于使用环保产品。
EN： In many Western cities, 'ride-sharing apps' (like Uber or Lyft) have become as common as traditional taxis, often offering more transparent pricing through the app interface.
中文： 在許多西方城市，「共乘應用程式」（如 Uber 或 Lyft）已變得與傳統計程車一樣普遍，且通常透過 App 介面提供更透明的定價。
EN： The coordinating conjunction 'but' is used to connect two independent clauses that express contrasting ideas. It is usually preceded by a comma.
中文： 并列连词“but”用于连接两个表示转折关系的独立分句。在连接两个完整句子时，通常会在前面加上逗号。
I like coffee, but my sister prefers tea.
我喜欢咖啡，但我姐姐更喜欢茶。
EN： Comparative adjectives (e.g., 'cheaper') are used to compare two things. For short adjectives, we add '-er' to the end. The adverb 'usually' is a frequency adverb placed before the adjective in this structure.
中文： 比较级形容词（例如“cheaper”）用于比较两者。对于短形容词，我们在词尾加上“-er”。副词“usually”是频率副词，在此结构中置于形容词之前。
Trains are usually faster than buses.
火车通常比公交车快。
EN： In many Western cities, ride-sharing services like Uber or Lyft are often more popular than traditional taxis because of their upfront pricing and app-based convenience, though taxis are still common at airports and major stations.
中文： 在許多西方城市，像 Uber 或 Lyft 這樣的共乘服務通常比傳統計程車更受歡迎，因為它們提供透明的預付價格且使用 App 非常方便。不過，在機場和各大車站，計程車依然很常見。
EN： Past Continuous Tense (was/were + V-ing): Used to describe an action that was in progress at a specific time in the past, often providing background context for a story.
中文： 过去进行时 (was/were + V-ing)：用于描述过去某个特定时间点正在进行的动作，通常用来提供故事的背景信息。
I was studying in the library when you called me.
你给我打电话时，我正在图书馆看书。
EN： Coordinating Conjunction 'and': Used to connect two independent clauses that are related in thought, creating a compound sentence.
中文： 并列连词 'and'：用于连接两个逻辑相关的独立分句，构成一个复合句。
The weather was beautiful and we decided to go for a walk.
天气很好，所以我们决定去散步。
EN： In many Western cities, ride-sharing apps like Uber or Lyft are often preferred over traditional taxis because of their upfront pricing and ease of use through a smartphone.
中文： 在許多西方城市，像 Uber 或 Lyft 這樣的共乘應用程式通常比傳統計程車更受歡迎，因為它們價格透明且透過智慧型手機操作非常方便。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed by a certain point in time, emphasizing the resulting state that exists when the main action occurs.
中文： 现在完成时（have/has + 过去分词）在此处用于描述在某个时间点之前已经完成的动作，强调主句动作发生时已经存在的状态。
I will call you when I have finished my homework.
等我做完作业后，我会给你打电话。
EN： The subordinating conjunction 'when' introduces an adverbial clause of time, establishing the specific condition or period during which the main clause is true.
中文： 从属连词 'when' 引导时间状语从句，用来建立主句内容成立的特定条件或时间段。
The streets are quiet when it snows.
下雪时街道很安静。
EN： In many Western cities, public transportation like buses and trains may have limited service or stop entirely after midnight. This has led to the high popularity of ride-sharing apps (like Uber or Lyft) as a primary safe transport option at night.
中文： 在許多西方城市，公車和火車等大眾運輸工具在午夜後班次會減少或完全停止。這使得共乘軟體（如 Uber 或 Lyft）成為深夜主要的安全交通選擇。
EN： The use of 'will' to express a spontaneous decision made at the moment of speaking, often preceded by 'I think'.
中文： 使用 'will' 来表达说话当下所做的即时决定，通常前面会加上 'I think'（我想/我认为）。
I think I will have a coffee instead of tea.
我想我会改喝咖啡，不喝茶了。
EN： The adverb 'really' is used as an intensifier before an adjective to emphasize the degree of the quality.
中文： 副词 'really' 用作形容词前的程度副词，用来强调该特质的程度。
The movie was really exciting.
那部电影真的很刺激。
EN： In many Western cultures, expressing gratitude by explaining why something was helpful ('This is really helpful') is considered more polite than a simple 'Thank you'.
中文： 在許多西方文化中，透過解釋為什麼某事有幫助（如：'This is really helpful'）來表達感謝，被認為比單純說 'Thank you' 更有禮貌且真誠。
EN： The phrase 'be located' is a passive construction used to describe the geographical position or site of a place. It emphasizes the state of being situated somewhere.
中文： 短语 'be located' 是一种被动结构，用于描述某个地点地理位置或场所。它强调处于某个位置的状态。
The museum is located in the city center.
博物馆位于市中心。
EN： The word 'just' is used here as an adverb to emphasize that the distance is small or the location is very close.
中文： 单词 'just' 在这里用作副词，用来强调距离很短或位置非常接近（仅仅、就在）。
The grocery store is just around the corner.
杂货店就在转角处。
EN： In North American cities, 'blocks' are a standard unit of measurement for walking distances, referring to the distance between two intersecting streets.
中文： 在北美城市中，「blocks」（街區）是衡量步行距離的標準單位，指的是兩條交叉街道之間的距離。
EN： The conjunction 'so (that)' is used to express purpose or result. In spoken English, 'that' is often omitted, connecting an action with its intended outcome.
中文： 连词“so (that)”用于表示目的或结果。在口语英语中，“that”通常会被省略，用来连接一个动作及其预期的结果。
I'll leave early so I can catch the first train.
我会早点出发，这样我才能赶上首班火车。
EN： The modal verb 'can' is used here to make a polite request or suggestion in an informal context.
中文： 情态动词“can”在此处用于在非正式语境中提出礼貌的请求或建议。
Can you help me with this luggage?
你可以帮我拿一下这个行李吗？
EN： In Western cultures, asking someone to 'show me' how to use public transport is a common way to build rapport and ensure safety when navigating a new city. It is considered a friendly request among acquaintances.
中文： 在西方文化中，請求某人「示範」如何使用大眾運輸是建立良好關係並確保在陌生城市導航安全的一種常見方式。在熟人之間，這被視為一種友好的請求。
EN： The future simple tense 'will' is used here to express a promise or a voluntary action decided at the moment of speaking.
中文： 一般将来时 'will' 在此处用于表达承诺，或是说话当下做出的自愿决定。
I will call you when I arrive at the station.
我到达车站时会打电话给你。
EN： Prepositions of time: 'at' is used for specific clock times (at nine), while 'in' is used for periods of the day (in the morning).
中文： 时间介词：'at' 用于具体的时间点（在九点），而 'in' 用于一天中的某个时段（在早上）。
The meeting starts at two in the afternoon.
会议在下午两点开始。
EN： In many English-speaking cultures, being punctual (arriving exactly at the agreed time) is highly valued, especially for scheduled meetings or appointments.
中文： 在許多英語系國家，準時（在約定的時間到達）是非常受重視的價值觀，特別是對於預約好的會面或行程。
EN： The verb 'feel' is a linking verb (stative verb) followed by an adjective ('confident') to describe the subject's state. 'Much more' is used as an intensifier before the comparative adjective to emphasize the degree of change.
中文： 动词“feel”是一个系动词（状态动词），后面接形容词“confident”来描述主语的状态。“Much more”用作比较级形容词前的修饰语，用以强调改变的程度。
I feel much more relaxed after the yoga class.
上完瑜伽课后，我感觉轻松多了。
EN： The phrasal verb 'get around' means to travel from place to place or to move from one location to another, especially in a city.
中文： 短语动词“get around”意指在各地间旅行或从一个地方移动到另一个地方，特别是指在城市中四处走动或通勤。
It is quite easy to get around the city by subway.
坐地铁在城市里四处走动相当方便。
EN： In English-speaking cultures, expressing gratitude ('Thanks') followed by a statement of how the help was effective ('I feel much more confident') is a common way to show genuine appreciation and close a conversation politely.
中文： 在英語系國家中，先表達感謝（Thanks），接著說明對方的幫助如何產生正面效果（I feel much more confident），是展現真誠謝意並禮貌地結束對話的常見方式。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 公共交通工具，如公交车、火车或地铁。
在本文中： 昂贵的，价格高昂的。
在本文中： 月票，指在一个月内可无限次或多次使用的乘车票券。
在本文中： 换乘，指从一种交通工具换乘另一种，或从一条线路换乘到另一条线路。
在本文中： （乘坐交通工具的）票价、车费。
在本文中： 网约车/拼车服务，如 Uber 或 Lyft 等通过应用软件预约的出行服务。
在本文中： 便利的，省时省力的。
在本文中： 位于，座落于某个位置。
在本文中： 有信心的，自信的。
片语包含类型标示、双语定义、用法说明和例句。
To travel from place to place.
四处走动、往来各处。
To operate or depart at a frequency of ten minutes.
每十分钟发一班车。
To cease operation for the day.
停止运营、收班。
To reduce costs or avoid spending too much.
省钱。
A ticket that allows unlimited travel within a specific month for a fixed price.
月票
A ticket valid for only one journey in one direction.
单程票
To operate or travel along a fixed route on a schedule.
行驶 / 运营
A specific route in a subway or train system, often identified by a color.
蓝线
To include or pay for the cost of something.
包含 / 涵盖
The distance between two parallel streets in a city.
街区