Word · Frequency #3139
rats
告发；检举；出卖
rats is the third person singular of rat.
To inform on someone; to betray someone to the police or authorities.
- 1.
To hunt or kill rats.
猎杀或杀死老鼠
- 2.
Damn, drat, blast; used in oaths.
该死的；用于咒骂中
- 3.
To betray a political party, cause or principle; to betray someone, to desert a person or thing.
背叛政党、事业或原则；背叛某人,抛弃某人或事物
- 4.
To inform on someone; to betray someone to the police or authorities.
告发某人；向警方或当局出卖某人
背叛；背弃；捕鼠；猎鼠；该死；见鬼；猎杀或杀死老鼠；该死的；用于咒骂中
In use
He ratted on his boss to get a promotion.
The criminal ratted out his gang members to reduce his sentence.
If you rat on us, we'll never trust you again.
rat on sb/sth
rat on 是固定搭配，on 后接被背叛、背弃或告发的人、团体或事业；若要说明向谁告发，后面可用 to the police 等。
He ratted on his teammates.
他出卖了自己的队友。
go ratting
go + 动词-ing 表示外出进行该活动；ratting 是 rat 的现在分词，专指猎鼠活动。
They went ratting in the old barn.
他们去旧谷仓捕鼠。
Verb forms
base rat · third person rats · -ing ratting · past ratted · past participle ratted
规则动词，注意加-ed/-ing时双写t。
Common mistakes
Connections
Collocations
- rat on someone
- 背叛某人；出卖某人
- He ratted on his friends to save himself.他出卖朋友以求自保。
- rat somebody out
- 告发某人；检举某人
- Someone ratted us out to the police.有人向警方告发了我们。
- go ratting
- 捕鼠；猎鼠
- Farmers used to go ratting with dogs and traps.农民过去常带着狗和捕鼠夹去捕鼠。
Idioms & figurative uses
- rat on
- 告发；出卖He ratted on his colleagues to get a promotion.他为了升职而告发了同事。
- rat out
- 告发；背叛The thief ratted out his partner in crime to the police.窃贼向警方告发了他的犯罪同伙。
Pop culture & quotes
Learner notes
Memory Tip
rat 作动词是“告发/背叛”，想象大老鼠偷偷溜走、出卖同伴：rat 这个词里有个 at（指向），像在指认目标，帮你记住背叛之意。
Context & Register
语域：mixed 常见场景：everyday informal talk、school or workplace disputes、police informant situations、political or party conflicts、hunting or pest control rat 作动词表示“背弃、告发、出卖”时通常用于非正式口语，多出现在日常聊天、校园或职场冲突等场景；表示“捕鼠”时则较中性，多与打猎或除害相关。正式书面语中应慎用非正式义项。
Grammar Note
及物动词表示‘弄蓬松’，不及物动词表示‘捕鼠’或‘变节’
Pronunciation & Spelling
这些词都与 rat 押韵：重读元音和其后辅音均为 /æt/。注意拼写相近但发音不同的词，如 rate /reɪt/（元音不同）和 what /wʌt/（元音不同），不要把它们误认为同韵。
Usage priority
Collins 词频等级为 2，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 DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.