Word · Frequency #14602
Fully loadedundercover
秘密的；暗中进行的；卧底的
undercover
- 1.
Performed or happening in secret.
秘密进行或发生的
- 2.
Employed or engaged in spying or secret investigation.
受雇从事间谍活动或秘密调查的
秘密进行或发生的；受雇从事间谍活动或秘密调查的；秘密从事的；秘密的；从事间谍活动的；[法] 暗中从事的
In use
The journalist conducted an undercover interview to expose the truth about the company.
A police officer was undercover at the night market to catch the thief.
They prepared an undercover plan to retrieve the documents without being noticed.
undercover + noun
undercover 作定语，意为“卧底的、秘密的”，常修饰 agent、operation、officer 等名词。
An undercover agent was sent to investigate the company.
一名卧底特工被派去调查那家公司。
be undercover
undercover 作表语时，表示某人处于卧底或秘密工作的状态。
The police officer was undercover during the protest.
那名警察在抗议活动期间是卧底的。
Common mistakes
Connections
Collocations
- undercover agent
- 卧底特工
- The undercover agent infiltrated the criminal gang.这名卧底特工潜入了犯罪团伙。
- undercover operation
- 秘密行动
- Police carried out an undercover operation to catch the drug dealers.警方开展了一次秘密行动，以抓捕毒贩。
- go undercover
- 去当卧底；暗中调查
- She decided to go undercover to expose the corruption.她决定去当卧底，揭露腐败。
- undercover work
- 卧底工作
- Undercover work can be extremely dangerous.卧底工作可能极其危险。
- undercover police officer
- 卧底警察
- An undercover police officer was assigned to the case.一名卧底警察被指派负责此案。
- undercover investigation
Learner notes
Memory Tip
记住under（在…下）+cover（遮盖）：藏在遮盖之下行动，就是卧底、秘密的。
Context & Register
语域：neutral 常见场景：police work、journalism undercover 通常用于形容警察、记者等以隐藏身份进行的秘密调查或报道，属于中性常用词，在新闻和日常对话中都比较自然。
Pronunciation & Spelling
这些词与 undercover 的词尾 -cover 同韵（重读元音 /ʌ/ 加 /və/）：cover、discover、recover、uncover、lover。hover 是易混词，但在本条目采用的英式读音中读作 /ˈhɒvə/，与 /kʌvə/ 不同韵；部分美式口音中它可能读得接近。
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。
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.