EN： The conjunction 'while' is used at the beginning of a sentence to introduce a concession (meaning 'although' or 'despite the fact that'), creating a contrast between a widely held belief or background fact and a striking main clause argument.
中文： 连词「while」放在句首时可用作让步状语从句引导词，相当于「although」（虽然、尽管），用来对比大众普遍认知或背景事实与主句所要强调的特例事实。
While conventional wisdom suggests that humans cannot regenerate organs, recent stem cell research challenges this boundary.
虽然传统观念认为人类无法使器官再生，但最近的干细胞研究正在挑战这一界限。
EN： The passive form 'be relegated to' means to be assigned to a lower, less important, or specific category or status. It is often used to emphasize that something is no longer considered realistic or prominent.
中文： 被动语态结构「be relegated to」表示「被降级至…」、「被归类于（较次要或特定的）范畴」。常用于强调某事不再被视为现实、重要或具备主流地位。
Once considered cutting-edge science, the theory was eventually relegated to the history books.
该理论曾被视为尖端科学，但最终被归类入历史书的尘封记忆中。
EN： The relative clause 'what no other creature has managed' uses the nominal relative pronoun 'what' (meaning 'that which' or 'the thing which') as the direct object of the main verb 'has achieved', incorporating both the antecedent and the relative pronoun.
中文： 关系从句「what no other creature has managed」采用名词性关系代词「what」（相当于 the thing that），在主句中充当动词「has achieved」的宾语，同时包含了先行词与关系代词的功能。
The team accomplished what many industry experts thought was impossible.
该团队做到了许多业界专家认为不可能的事。
EN： 'Speculative fiction' is an umbrella term encompassing genres such as science fiction, fantasy, and dystopian fiction that speculate about scenarios outside human reality. Mentioning it alongside 'immortality' highlights how eternal life has traditionally belonged to human imagination rather than empirical biology.
中文： 「推想小说」（speculative fiction）是一个涵盖科幻、奇幻及反乌托邦小说的总称，专门构想超出当前人类现实的情境。将「永生」与推想小说并提，凸显了长生不老传统上一直属于人类想象力与神话的范畴，而非实证生物学的现实。
EN： Apposition is used here to give essential background information about a proper noun. 'A marine biologist at Texas A&M University' is a noun phrase in apposition that renames and describes 'Associate Professor Maria Pia Miglietta'.
中文： 同位语（Apposition）用于为专有名词补充额外说明。此处的名词短语 'a marine biologist at Texas A&M University' 即为同位语，用来进一步说明 'Maria Pia Miglietta' 的身份与职衔。
Dr. Sarah Chen, a renowned astrophysicist at Harvard University, delivered the keynote address.
哈佛大学的知名天体物理学家莎拉·陈博士发表了专题演讲。
EN： The Present Perfect tense ('has emphasized') is used to present a past action as relevant news, while the reported speech noun clause ('that this species possesses...') uses the Present Simple tense ('possesses') because it describes a timeless scientific fact.
中文： 主句使用现在完成时（has emphasized）来传达近期的研究观点或强调；名词子句（that 引导）则使用现在简单时（possesses），因为此处表达的是不受时间限制的科学事实或客观真理。
Researchers have confirmed that light travels faster than sound.
研究人员已经证实光速比音速快。
EN： The preposition 'for' followed by a gerund ('evading') functions as a post-modifier for the noun 'mechanism', explaining the specific purpose or function of the mechanism.
中文： 介词 'for' 接动名词（V-ing）在此作为后置修饰语，修饰前面的名词 'mechanism'，用以说明该机制或功能的具体目的（……的机制）。
Engineers developed a new algorithm for detecting network anomalies.
工程师开发了一种用于检测网络异常的新演算法。
EN： The conjunction 'whether... or...' is used to introduce alternative possibilities or conditions, indicating that the main clause remains true regardless of which condition applies. Here, it is inserted parenthetically to elaborate on 'hostile conditions'.
中文： 连词「whether... or...」（无论是……还是……）用于引出替代性的可能性或条件，表示无论哪种条件成立，主句的情况都不会改变。在本句中，它作为插入语，用于进一步说明「恶劣条件（hostile conditions）」的具体范畴。
The organism can adapt to extreme environments, whether in the deep sea or high-altitude mountains.
无论是在深海还是高海拔山区，该生物都能适应极端环境。
EN： The adverbial subclause of time introduced by 'when' ('when the jellyfish encounters hostile conditions...') functions as a conditional frame within the nominal 'that'-clause object of 'explained'.
中文： 由「when」引导的时间副词子句（当水母遇到恶劣条件时……）在「explained」的宾语名词子句（that-clause）中扮演条件框架的角色，用来限定主句动作发生的时机。
She observed that when the temperature drops sharply, the cells initiate a protective response.
她观察到，当温度急剧下降时，细胞会启动保护性反应。
EN： The verb 'refuse' is followed by a to-infinitive ('refuse to perish'). The use of 'simply' as an intensifying adverb emphasizes the straightforward yet astonishing nature of the action.
中文： 动词「refuse」（拒绝）后接不定词（to-infinitive，如 to perish）。副词「simply」（仅仅、干脆）在这里起强化语气的作用，凸显出该行为虽然简单直接，却令人惊叹。
EN： A colon (:) is used here to introduce an explanation, elaboration, or breakdown of the concept mentioned before it ('a predictable lifecycle'). It signals that the following clause details the specific steps of that lifecycle.
中文： 冒号（:）在此处用于引导对前面提到的概念（『可预测的生命周期』）进行补充说明、详细阐述或步骤拆解，表明后方的子句将具体列出该生命周期的各个阶段。
The experiment yielded a clear result: the new compound significantly reduced bacterial growth.
该实验得出了一个明确的结果：这种新化合物显著抑制了细菌的生长。
EN： The non-defining relative clause 'which subsequently bud off...' uses 'which' to refer back to the preceding noun 'stationary polyps'. It adds descriptive details about what the polyps do next without restricting the identity of the polyps themselves.
中文： 非限定关系子句『which subsequently bud off...』利用『which』来指代前面的名词『stationary polyps』（固着的水螅体）。此结构补充说明水螅体接下来的生理动作，而不限制该名词本身的范围。
The trees shed their leaves in autumn, which subsequently enrich the surrounding soil.
树木在秋天落叶，这些落叶随后滋养了周围的土壤。
EN： The defining relative clause 'that mature into adults' modifies 'free-swimming medusas'. It specifies the final development stage of these medusas, using the phrasal verb 'mature into' to describe growing or developing into a full stage.
中文： 限定关系子句『that mature into adults』用于修饰前面的『free-swimming medusas』（自由游动的水母体）。其中短语动词『mature into』表示『成长／发育成为』某个成熟阶段。
Researchers identified several larvae that mature into rare species of beetles.
研究人员发现了几种会发育成为稀有甲虫物种的幼虫。
EN： The perfect participle ('Having + past participle') is used to express an action that was completed before the action in the main clause took place. It emphasizes the sequential order of events.
中文： 完成分词（Having + 过去分词）用于表示在主句动作发生之前已经完成的动作，强调事件发生的先后顺序。
Having finished the report, she submitted it to the manager.
完成报告后，她将其提交给了经理。
EN： Compound verbs connected by the conjunction 'and' allow two sequential or simultaneous actions ('deteriorate and die') to share the same subject ('these adults') and adverbial modifier ('gradually').
中文： 由对等连接词「and」连接的复合动词（deteriorate and die），共享同一个主语（these adults）以及副词修饰语（gradually）。
The old autumn leaves slowly fade and fall.
秋天的老叶慢慢褪色并掉落。
EN： The conjunction 'however' can be placed as a parenthetical element between commas (an adverbial insertion) immediately after the subject. This interrupts the subject-verb flow to create a formal contrast with the preceding context, which is common in academic and scientific writing.
中文： 转折连词「however」可以作为插入语置于两个逗号之间，紧跟在主语之后。这种句型打断了主语与动词的直接连接，能在科学与学术写作中营造出更严谨、正式的对比语气。
The initial trial, however, failed to produce any statistically significant results.
然而，初步试验未能产生任何显著的统计结果。
EN： The reduced relative clause pattern 'known as [noun/term]' uses a past participle to modify a preceding noun phrase ('an astonishing cellular process') without requiring a full relative clause like 'which is known as'. This is a concise way to introduce specialized terminology.
中文： 「known as + 名词/专有名词」为简化关系子句（缩减形容词子句），省略了「which is」，直接以过去分词作后位修饰，用于精确且简洁地引出专业术语或名称。
The patient was diagnosed with a rare condition known as Alice in Wonderland syndrome.
该患者被诊断出一种被称为「爱丽丝梦游仙境症候群」的罕见疾病。
EN： The preposition 'through' expresses the instrument or method by which an action is accomplished ('through an astonishing cellular process'). It indicates the medium or mechanism enabling the subject to achieve the result.
中文： 介词「through」在此表示「通过…的方式/途径」，用来说明主语达成某项结果或行为所采用的机制或媒介。
The researchers managed to isolate the gene through a complex series of laboratory experiments.
研究人员通过一连串复杂的实验室实验，成功分离出了该基因。
EN： Turritopsis dohrnii is colloquially known as the 'immortal jellyfish.' In scientific discourse, 'transdifferentiation' refers to a non-stem cell transforming into a different type of cell. Popular culture often misinterprets this as literal eternal life, but scientifically, it represents a complete developmental reset, effectively cloning itself into a youthful state.
中文： 灯塔水母（Turritopsis dohrnii）在俗称中被称为「永生水母」。在生物科学领域，「反分化（transdifferentiation）」是指已经分化的非干细胞转化为另一种细胞形态的极罕见过程。大众文化常将其误解为生物体个体的「长生不老」，但从科学的角度来看，这其实是一种发育状态的重置——将自身细胞重新组合并复制成幼年的水母体。
EN： The prepositional phrase 'rather than' is used to express preference or contrast, meaning 'instead of'. When followed by a verb, it usually takes a gerund (-ing form) when functioning prepositionally, or a bare infinitive when contrasting main verbs.
中文： 介词短语「rather than」用于表示偏好或对比，意为「而不是／与其……不如……」。当后面接动词时，若作介词使用通常接动名词（-ing）；若用来对比主要动词，亦可接原形动词。
Rather than complaining about the problem, she offered a practical solution.
她没有抱怨问题，而是提出了一个实用的解决方案。
EN： When a single subject performs multiple actions in sequence, the verbs form a compound predicate linked by commas and a coordinating conjunction (e.g., 'A, B, and C'). All verbs must maintain parallel grammatical structure and tense.
中文： 当单一主语依序执行多个动作时，动词会组成由逗号及对等连接词连接的复合动词（例如「A, B, and C」）。所有动词必须保持平行的语法结构与时态一致。
The researcher entered the laboratory, turned on the equipment, and began the experiment.
研究人员进入实验室，打开设备，随后开始进行实验。
EN： Adverbs ending in '-ly' (like 'genetically') are used to modify adjectives ('identical'), which in turn modify nouns ('polyp'). This creates a precise compound modifier describing the degree or nature of the quality.
中文： 以「-ly」结尾的副词（如 genetically）可用于修饰形容词（如 identical），进而修饰名词（如 polyp）。这种结构能精确说明该特征的程度或性质。
The twins were raised in different countries but remained remarkably similar.
这对双胞胎在不同的国家长大，但依然极为相似。
EN： Participle phrases starting with '-ing' (e.g., 'likening...') can function as adverbial modifiers to elaborate on the main clause, showing manner, result, or simultaneous action without repeating the subject.
中文： 现在分词短语（如 'likening...'）可用作副词性修饰语，用以补充说明主句动作的方式、结果或伴随状况，能使句式更为紧凑，避免重复主语。
The professor delivered a compelling lecture, inspiring many students to pursue careers in scientific research.
教授发表了一场引人入胜的演讲，激励了许多学生投身科学研究事业。
EN： The idiomatic structure 'liken A to B' means to compare A to B in order to highlight their similarities, typically used in formal or academic contexts.
中文： 动词短语 'liken A to B' 意为「将 A 比作 B」，常用于正式或学术情境中，借由比喻来突显两者之间的相似之处。
Economists often liken the flow of money to the circulation of blood in a human body.
经济学家常将资金的流动比作人体内的血液循环。
EN： The verb 'revert' followed by the preposition 'to' indicates a return to a previous state, condition, or habit.
中文： 动词 'revert' 后接介词 'to'，表示「回复、倒退回」先前的状态、情况或习惯。
After the system crash, the software automatically reverted to its default settings.
系统崩溃后，该软件自动回复到预设设定。
EN： Inverted conditional clause omitting 'If'. When 'If' is omitted in a hypothetical or second conditional clause, the auxiliary verb 'Were' moves to the front of the sentence before the subject ('Were + subject + adjective/noun/to-V'). This creates a more formal, literary tone.
中文： 省略「If」的倒装条件句。在假设或第二条件句中省略「If」时，助动词「Were」需移至句首、主语之前（结构为「Were + 主语 + 形容词/名词/不定词」）。这种句型能营造出更正式、具文学感的语气。
Were I in your position, I would accept the job offer immediately.
如果我处于你的立场，我会立刻接受那份工作邀请。
EN： Mixed conditional/unreal hypothetical in the present/future (Second Conditional). It uses a past subjunctive form ('were') in the conditional clause and 'would + base verb' in the main clause to express an unlikely or contrary-to-fact hypothetical scenario.
中文： 与现在/未来事实相反的假设句（第二条件句）。条件从句使用过去式虚拟语气（were），主句则搭配「would + 原形动词」，用来表达极不可能发生或与现状相反的假设情境。
If technology allowed us to live forever, society would face unprecedented ethical challenges.
如果科技能让我们永生，社会将面临前所未有的伦理挑战。
EN： Inverted Conditional Clause (Inversion without 'if'): In formal and literary written English, conditional sentences can omit 'if' by inverting the auxiliary or modal verb (e.g., 'should', 'had', 'were') with the subject. Here, 'should scientists eventually decipher' is an inverted form of 'if scientists should eventually decipher', expressing a hypothetical or conditional condition.
中文： 倒装条件子句（省略 if 的倒装）：在正式与书面英文中，条件子句可省略连接词「if」，并将助动词或情态动词（如 should、had、were）移至主词前面。在此句中，「should scientists eventually decipher」为「if scientists should eventually decipher」的倒装型态，用以表示某种假设或条件。
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若您需要进一步的协助，请随时联系我们的支援团队。
EN： Link Verb 'Prove' + Adjective Complement: The verb 'prove' can function as a copular (linking) verb meaning 'to turn out to be' or 'to be shown to be', followed directly by an adjective (e.g., 'prove profound') without requiring 'to be'.
中文： 连缀动词「prove」+ 形容词补语：动词「prove」在此充当连缀动词，意思是「结果证明是」或「显现出……」，后面可直接接形容词（如 prove profound），无须加上「to be」。
The new strategy could prove vital for the company's long-term survival.
这项新策略可能会被证明对公司的长期生存至关重要。
EN： Defining Relative Clause with 'that': The relative pronoun 'that' introduces a restrictive (defining) relative clause modifying 'the precise genetic mechanisms', providing essential information about what these mechanisms do ('that govern this remarkable process').
中文： 用「that」引导的限制性关系子句：关系代词「that」在此引导限定修饰「the precise genetic mechanisms」的关系子句，提供关于这些机制的作用（即「支配这种非凡过程」）的关键必要信息。
Researchers have discovered a unique compound that inhibits the growth of cancer cells.
研究人员发现了一种能抑制癌细胞生长的独特化合物。
EN： Negative Inversion: When a sentence begins with a negative expression or a restrictive phrase like 'Not without reason', 'Never', or 'Seldom', the subject and the auxiliary/modal verb are inverted to place emphatic focus on the initial phrase.
中文： 否定词倒装句：当句子以「Not without reason」（绝非无因）、「Never」或「Seldom」等否定或限制性副词短语开头时，主语与助动词（或情态动词）需进行倒装，以达到强调该开头短语的效果。
Not without reason did she decide to move to a new city.
她决定搬到新城市，绝非毫无道理。
EN： Non-finite Participle Clause (Result Clause): The present participle clause ', prompting...' functions as an adverbial modifier indicating a natural consequence or result of the preceding main clause.
中文： 分词分句（表示结果）：现在分词短语「, prompting...」在句中充当副词性修饰语，用来表示前面主句所产生的自然结果或后续影响。
The company launched a revolutionary product, driving its stock price to an all-time high.
该公司推出了一款革命性产品，推升其股价创下历史新高。
EN： Nominal Content Clause / Indirect Question: The subordinator 'whether' introduces a noun clause acting as the direct object of 'investigate', expressing uncertainty or possibility regarding a future benefit.
中文： 名词性内容从句／间接疑问句：从属连词「whether」引导一个名词子句，作为「investigate」的直接宾语，用以表示对未来能否带来益处的不确定性或可能性。
Scientists are studying whether the new compound can effectively inhibit tumor growth.
科学家正在研究这种新型化合物是否能有效抑制肿瘤生长。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 降低…的地位；将…归类为
在本文中： 逃避；规避
在本文中： 死亡；枯萎
在本文中： 变态；彻底改变（形态或性质）
在本文中： 随后；接着
在本文中： 恶化；退化
在本文中： 规避；绕过
在本文中： 屈服；死（于疾病或衰老）
在本文中： 类比；比喻
在本文中： 回复；恢复（原状）
在本文中： 根本地；从根本上
在本文中： 解码；破解
片语包含类型标示、双语定义、用法说明和例句。
To produce a new organism or part through a process of budding, separating from the parent.
出芽；出芽分离
To make a comparison between two things to help explain or clarify a concept.
作类比；打比方
A broad category of fiction encompassing genres with elements that do not exist in the real world, such as science fiction, fantasy, and horror.
科幻与奇幻文学；推想小说
The gradual deterioration of functional characteristics in living organisms over time.
生物老化