Word · Frequency #6461
onset
（尤指不愉快事情的）开始，开端
核心释义
the beginning of something, especially something unpleasant
- 1.
疾病或病症的初期阶段,症状开始显现。
The initial phase of a disease or condition, in which symptoms first become apparent.
- 2.
音节的开头部分,位于音节核之前。
The initial portion of a syllable, preceding the syllable nucleus.
- 3.
音符或其他声音的起始,振幅从零上升到初始峰值。
The beginning of a musical note or other sound, in which the amplitude rises from zero to an initial peak.
- 4.
开始；开端。
A setting about; a beginning.
攻击，进攻；疾病或病症的初期阶段,症状开始显现。；音节的开头部分,位于音节核之前。；音符或其他声音的起始,振幅从零上升到初始峰值。；开始；开端。
用法In use
The onset of winter brought heavy snowfalls.
用法提示：此处 onset 表示冬天开始的时间点。
She experienced the sudden onset of a severe headache.
用法提示：此处 onset 表示疾病的突然开始。
The onset of the economic crisis caused widespread panic.
用法提示：此处 onset 表示危机的开始阶段。
the onset of [sth]
常指不愉快或严重事物的开始。
The onset of the rainy season caused flooding.
雨季的开始导致了洪水。
at the onset (of [sth])
可省略of短语，但通常搭配of。
At the onset, symptoms are mild.
相关词与表达Connections
搭配Collocations
- at the onset
- 在开始时
- At the onset of the meeting, the chairman introduced the main topic.在会议开始时，主席介绍了主要议题。
- onset of symptoms
- 症状的出现
- The onset of symptoms can be gradual or sudden.症状的出现可以是逐渐的或突然的。
- sudden onset
- 突然发作
- The sudden onset of fever worried the parents.突然发烧让父母很担心。
- early onset
- 早发性
- Early onset Alzheimer's disease is relatively rare.早发性阿尔茨海默病相对罕见。
- onset of the disease
学习提示Learner notes
记忆技巧Memory Tip
把"onset"拆成"on"（在）和"set"（设置），联想"开始设置"，形象记住"开始、开端"的含义。
语境与语域Context & Register
formal
发音与拼写Pronunciation & Spelling
Words ending in '-set' share the same spelling cluster. Note that while 'set', 'reset', and 'upset' are stressed on the second syllable, 'sunset', 'offset', and 'outset' are stressed on the first syllable. Of these, only 'offset' has the same stressed vowel /ɒ/ as 'onset', but its coda differs (/f/ vs /n/).
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.