EN： The present perfect tense ('has released') is formed with 'have/has' + past participle. It is used here to report recent news or an event that occurred at an unspecified time with relevance to the present.
中文： 现在完成式（has released）由“have/has + 过去分词”构成。在此处用于报道近期新闻，强调过去发生的事件对现在仍具关联性与影响。
The company has launched its latest smartphone today.
该公司今天推出了最新的智能手机。
EN： A non-defining relative clause is introduced by 'which' preceded by a comma. It provides extra, non-essential information about the preceding noun phrase ('its new AirPods 5').
中文： 非限定关系子句以逗点加“which”引导，用来补充说明先行词（its new AirPods 5）的额外非必要信息，语气通常稍微停顿。
He bought a new laptop, which has an incredible battery life.
他买了一台新笔记本电脑，其电池续航力令人惊艳。
EN： In consumer tech, 'open-fit earbuds' refer to headphones designed to rest in the outer ear without creating a tight seal with silicone ear tips (unlike 'in-ear' monitors). Historically, adding effective Active Noise Cancellation (ANC) to open-fit earbuds has been an engineering challenge because sound leaks naturally.
中文： 在消费电子产品中，「open-fit earbuds」（半入耳式耳机）是指放置在外耳耳洞外缘、不用硅胶耳塞密闭耳道的耳机。传统上，在半入耳式结构中实现主动降噪（ANC）在工程上极具挑战性，因为外界声音会自然渗漏。
EN： The coordinating conjunction 'so' introduces a clause expressing result or consequence following an action or state.
中文： 对等连接词「so」用来连接表示结果的从句，说明前述原因所导致的后续状况或结果。
The weather was extremely cold, so we stayed indoors all day.
天气非常寒冷，所以我们整天都待在室内。
EN： The defining relative clause introduced by 'that' modifies the noun phrase 'the silicone tips', specifying which tips are being discussed.
中文： 关系代词「that」引导限制性关系从句，修饰先行词「the silicone tips（硅胶耳塞套）」，用以指明是哪些耳塞套。
He bought the laptop that his colleague recommended.
他买了同事推荐的那台笔记本电脑。
EN： In consumer audio technology, earphones are broadly divided into 'open-fit' (such as standard AirPods) and 'in-ear' or 'canal-type' designs (such as AirPods Pro). Open-fit designs prioritize all-day comfort and situational awareness by not sealing the ear canal, whereas in-ear models use silicone or foam tips to achieve passive noise isolation.
中文： 在消费性音频产品中，耳机主要分为「开放式／平头式」（如标准版 AirPods）与「入耳式」（如 AirPods Pro）。开放式设计不会封闭耳道，主打全天候佩戴舒适度与环境音警觉性；而入耳式则使用硅胶或海绵耳塞套深入耳道，以达到被动降噪与低音密封的效果。
EN： The prepositional phrase 'According to...' is used to cite a source, reference, or authority. It is typically followed by a noun phrase and set off by a comma when placed at the beginning of a sentence.
中文： 介词短语「According to...」（根据……）用来引用资料来源、参考依据或权威观点。通常后接名词短语；置于句首时，习惯上会使用逗号隔开。
According to the weather forecast, it will rain tomorrow.
根据天气预报，明天会下雨。
EN： The word 'rival' can function as a transitive verb meaning 'to be as good, impressive, or successful as someone or something else' (to match or equal).
中文： 「rival」可作及物动词使用，意为「比得上」、「与……匹敌」或「媲美」，表示其品质、表现或水准能与另一事物不相上下。
The hotel's restaurant rivals some of the best dining spots in the city.
这家饭店的餐厅足以媲美市内一些最顶级的餐馆。
EN： The Guardian is a major British daily newspaper known internationally for its news coverage, cultural commentary, and consumer technology reviews. In audio technology, 'plugged-in' here informally refers to 'in-ear' earbuds with silicone tips that plug into the ear canal to provide passive noise isolation, contrasting with open-fit designs.
中文： 《卫报》（The Guardian）是英国极具代表性的全国性报纸，以新闻报道与科技产品评测闻名。此外，在耳机科技领域，此处的「plugged-in」口语化地指称带有硅胶耳塞、能紧密塞入耳道以提供物理隔音的「入耳式耳机」，用以对比开放式（open-fit）耳机设计。
EN： Non-restrictive relative clause with 'which': The clause ', which is...' provides extra, supplementary information about the preceding clause or fact (the starting price of 119 pounds). It is separated by a comma and 'which' cannot be replaced with 'that'.
中文： 使用 which 的非限定关系从句：逗号后面的「, which is...」用来对前面提及的事实（售价自 119 英镑起）提供补充说明。非限定从句必须以逗号隔开，且此处的 which 不能换成 that。
The ticket costs 50 dollars, which is quite expensive for students.
这张票售价 50 美元，这对学生来说相当昂贵。
EN： Comparative degree with difference amount: Use [difference amount] + [comparative adjective/adverb] + 'than' to quantify the exact difference between two things (e.g., 'ten pounds cheaper than').
中文： 表示差距程度的比较级结构：句型为「差额 + 比较级形容词/副词 + than」，用来明确表达两者之间的具体差距（例如：ten pounds cheaper than 表示「比……便宜十英镑」）。
This model is five kilograms lighter than the older version.
这款型号比旧版本轻了五公斤。
EN： Prices in the UK are quoted in British pounds (£). In technology journalism, 'at launch' specifically refers to the manufacturer's suggested retail price (MSRP) when the product was first officially released to the market, before any subsequent discounts or price drops.
中文： 英国的商品标价以英镑（£）为单位。在科技与消费产品报道中，「at launch」（上市时）特指产品初次公开发售时的官方定价，常被拿来与新一代产品首发价格做对比，以衡量定价策略的升降。
EN： The structure 'the same as [something]' is used to express equality or similarity. It is often modified by adverbs like 'almost' or 'exactly' (e.g., 'almost the same as').
中文： 「the same as [名词/代词]」结构用于表示两者「与……相同」。常搭配「almost」（几乎）或「exactly」（完全）等副词修饰，例如「almost the same as」（几乎和……一模一样）。
Her new phone is almost the same as mine.
她的新手机几乎和我的那一支一模一样。
EN： The pattern '[adjective] + enough (+ for someone/something)' means having the sufficient degree of a quality. Note that 'enough' must follow the adjective, not precede it.
中文： 「[形容词] + enough (+ for 对象)」表示「足够……以至於能……」。注意 enough 作为副词修饰形容词时，必须放在该形容词后面，不可置于前方。
This bag is light enough for a child to carry.
这个包包很轻，小孩子也拿得动。
EN： Tech reviewers often use 'jeans pocket' or 'coin pocket' as a benchmark for ultra-portable wireless earbud cases, illustrating real-world convenience beyond technical millimeter dimensions.
中文： 科技产品评测常以「放得进牛仔裤口袋」（jeans pocket）或零钱袋作为真无线耳机充电盒极致便携的衡量标准，比起抽象的公釐尺寸更能让大众直观感受其日常实用性。
EN： The verb 'call' can take a complex transitive pattern: 'call + object + object complement' (call someone/something [noun/adjective]). Here, 'them' is the object, and the quoted noun phrase serves as the object complement.
中文： 动词「call」可用于不完全及物动词句型：「call + 宾语 + 宾语补语」（称呼某人／某物为……）。此处「them」为宾语，后方引号内的长名词短语则担任宾语补语，补充说明宾语的性质或称号。
Critics called the movie a masterpiece of modern cinema.
影评人称这部电影为现代电影的杰作。
EN： When the subject of the adverbial time clause is the same as the main clause subject, 'while' can be directly followed by a present participle (-ing), omitting the subject and the auxiliary verb (e.g., 'while commuting' instead of 'while they were commuting').
中文： 当由「while」引导的时间副词子句与主要子句主语相同时，可省略主语与 be 动词，直接保留现在分词（-ing）形成分词简化句（即「while commuting」相当于「while they were commuting」）。
He often listens to podcasts while jogging in the park.
他常在公园慢跑时听播客。
EN： In consumer tech journalism, reviewers frequently test open-fit earbuds during 'commuting' (taking subways, buses, or trains) because ambient noise isolation and stability under sudden movement are critical real-world benchmarks for earbud performance.
中文： 在科技产品评测中，评测人员经常特别测试耳机在「通勤」（搭乘地铁、公车或火车）时的表现，因为环境噪音隔离能力与在颠簸晃动下的佩戴稳定性，是消费者评估真无线耳机日常实用度的关键指标。
EN： The coordinating conjunction 'so' is used to connect two independent clauses, showing a cause-and-effect relationship (result). A comma typically precedes 'so' when joining full clauses.
中文： 对等连接词「so」用来连接两个独立子句，表达因果关系中的「结果」。连接两个完整子句时，通常在「so」前方加上逗号。
The weather was terrible, so we decided to cancel the hike.
天气非常糟糕，所以我们决定取消徒步。
EN： The modal verb 'may' expresses possibility or uncertainty. When paired with 'not' ('may not'), it indicates that something is possibly not true, suitable, or happening.
中文： 情态助动词「may」用于表示可能性或不确定性。与否定词「not」连用时（may not），表示「可能不……」或「或许不会……」。
This phone may not support the newest software update.
这部手机可能不支持最新的软件更新。
EN： In wireless earbud design, 'stability wings' (also known as ear hooks or wingtips) are flexible silicone fins meant to lock inside the ear canal's ridges. Open-fit earbuds like base AirPods lack these, making them comfortable for casual wear but prone to falling out during high-intensity training or running.
中文： 在无线耳机设计中，「stability wings」（固定耳翼，也称耳挂或翼尖）是弹性硅胶结构，用于卡在耳廓内固定耳机。像标准版 AirPods 这类半开放式（open-fit）耳机没有此设计，因此佩戴较无压迫感，但在高强度训练或跑步时容易滑落。
EN： The preposition 'by' followed by a gerund (-ing form) is used to express the method, means, or manner in which an action is performed ('by doing something').
中文： 介词「by」后接动名词（V-ing），用来表示达成某个动作的「方式、手段或途径」，意为「透过……的方式」。
You can activate Siri by saying 'Hey Siri'.
你可以透过说「嘿 Siri」来唤醒 Siri。
EN： Compound sentence with 'and': Two independent clauses are joined by the coordinating conjunction 'and', showing an addition of related information.
中文： 由对等连接词「and」连接的复合句：将两个各自完整的独立子句连接在一起，用来补充或延伸相关的资讯。
The standard model has basic features, and the pro model includes active noise cancellation.
标准款具备基本功能，而专业款则包含主动降噪技术。
EN： In tech reviews, 'stalk' (often called 'stem' in American tech journalism) refers to the elongated rod of earbuds like Apple's AirPods. Apple popularized gesture controls on the stalk, differentiating between 'squeeze' (force sensor clicks) and 'swipe' (capacitive touch sliding for volume).
中文： 在科技评测中，「stalk」（美式科技媒体也常称作「stem」）指的是真无线耳机向下延伸的「耳机柄」。苹果普及了耳机柄上的手势操作，并区分了「squeeze」（按压/捏压力度感应）与「swipe」（上下滑动以调节音量）两种不同操作逻辑。
EN： The intransitive verb 'last' is commonly used to express duration (how long something continues or remains functional), often followed directly by a time expression without a preposition like 'for'.
中文： 不及物动词「last」常用来表达「持续」或「维持」多久时间（如电池续航力），后面通常可直接接时间长度表达式，不一定需要介词「for」。
This phone's battery can last two full days on a single charge.
这支手机充饱一次电，电池可以维持整整两天。
EN： The preposition 'with' is used here to indicate accompanying conditions, features, or accessories (e.g., 'with noise cancelling' = under the condition that noise cancelling is on; 'with the case' = using the charging case).
中文： 介词「with」在此表示伴随的条件或附属配件（例如「with noise cancelling」表示开启降噪功能时；「with the case」表示搭配充电盒使用时）。
The laptop runs for six hours with heavy use, or ten hours in power-saving mode.
这台笔记本电脑在高强度使用下可运作六小时，在省电模式下则可达十小时。
EN： In consumer tech journalism, wireless earbud battery life is routinely stated as two numbers: single-charge playback time (often specifying whether Active Noise Cancellation is enabled) versus combined total listening time when topped up repeatedly inside the portable charging case.
中文： 在消费性科技新闻中，真无线耳机的电池规格通常会标示两个数字：单次充电聆听时间（常特别注明是否开启主动降噪 ANC），以及搭配随身充电盒多次回充后的总续航时间。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 發行、推出（新產品）
在本文中： 升級的、改良的
在本文中： 比得上、媲美
在本文中： （新產品的）上市、發表
在本文中： 通勤、往返上下班或上下學
在本文中： 穩定性、穩固度
在本文中： 適合的、適當的
在本文中： 捏、擠壓
片语包含类型标示、双语定义、用法说明和例句。
Technology that reduces or eliminates unwanted ambient sound
降噪、抗噪技术
Describing earbuds or hearing devices that do not completely seal the ear canal
开放式佩戴（设计）
To remain in the correct or intended position without slipping or falling
保持在原位、不移位
At the time when a new product is officially introduced or made available to the public
上市时、发售之初