Word · Frequency #6007
decay
腐烂
核心释义
The process or result of organic matter rotting, especially through microbial action.
- 1.
腐烂；有机物逐渐分解的过程或结果,尤指微生物作用
Rot; any processes or result of organic matter being gradually decomposed, especially by microbial action.
- 2.
逐渐变劣的过程
the process of gradually becoming inferior
- 3.
状况恶化；地位、质量、力量或财富的丧失
Deterioration of condition; loss of status, quality, strength, or fortune.
- 4.
逐渐减少；如存储电荷或电流的衰减
a gradual decrease; as of stored charge or current
- 5.
放射性衰变；原子或其原子核的分解
Radioactive decay; decomposition of an atom or its nucleus.
- 6.
有机物腐烂的现象
the organic phenomenon of rotting
- 7.
粒子衰变；亚原子粒子的分解
Particle decay; decomposition of a sub-atomic particle.
- 8.
数量的连续减少
Continuous decrease of a quantity.
- 9.
数组衰减
Array decay.
衰退；衰败；放射性衰变；衰减；递减；粒子衰变；数组衰减
用法In use
The decay of the old wooden fence was accelerated by the constant rain.
用法提示：decay 作主语，指腐烂的过程。
Dentists recommend regular brushing to prevent tooth decay.
用法提示：decay 作宾语，指牙齿的蛀蚀过程。
The city's infrastructure has fallen into decay due to lack of maintenance.
用法提示：decay 作介词宾语，指衰退状态。
be in decay
be in decay 表示处于腐烂或衰败的状态，decay 为不可数名词。
The neglected temple is now in decay.
这座被忽视的寺庙现在正在衰败。
fall into decay
fall into decay 强调从完好状态逐渐进入衰败或腐坏的过程。
相关词与表达Connections
搭配Collocations
- tooth decay
- 蛀牙；龋齿
- Brushing your teeth regularly can prevent tooth decay.定期刷牙可以防止蛀牙。
- urban decay
- 城市衰败；城市衰退
- The report blames urban decay on a lack of investment.该报告将城市衰败归咎于缺乏投资。
- moral decay
- 道德败坏；道德沦丧
- Many believe that social media has accelerated moral decay.许多人认为社交媒体加速了道德败坏。
- radioactive decay
- 放射性衰变
- Radioactive decay produces heat and radiation.放射性衰变会产生热量和辐射。
- state of decay
学习提示Learner notes
记忆技巧Memory Tip
联想：decay 里藏着 cay（小岛），海水日夜侵蚀小岛，使它逐渐腐烂崩塌——记住“腐烂、衰败、衰退”的意思。
语境与语域Context & Register
语域：neutral 常见场景：日常对话：食物或植物变坏、腐烂、牙科/健康：蛀牙（tooth decay）、生物/环境科学：有机物分解 该义项为中性词，日常和书面语都可用。多用于描述有机物（如食物、植物、牙齿）因微生物等自然作用而分解、变坏的过程；在生物学或环境科学中也是标准用词。
语法说明Grammar Note
作可数名词时通常指某一具体的衰退或腐烂实例。
发音与拼写Pronunciation & Spelling
day、say、delay、display、convey 的结尾都发重读的 /eɪ/，与 decay 押韵；decoy 是形近词，但 -oy 发 /ɔɪ/，读音完全不同。注意 /eɪ/ 可拼作 -ay 或 -ey。
高价值词汇High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
用法优先级
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.