1 N-COUNT 老鼠;耗子 A rat is an animal which has a long tail and looks like a large mouse. 老鼠;耗子
2 N-COUNT 卑劣的人;不忠实的人;小人 If you call someone a rat, you mean that you are angry with them or dislike them, often because they have cheated you or betrayed you. 卑劣的人;不忠实的人;小人 [informal, disapproval]
SYN rogue, scoundrel [old-fashioned] , heel [slang] , cad [old-fashioned , informal , British]
3 VERB 告密;出卖 If someone rats on you, they tell someone in authority about things that you have done, especially bad things. 告密;出卖 [informal]
4 VERB 违约;食言 If someone rats on an agreement, they do not do what they said they would do. 违约;食言 [informal]
5 PHRASE 怀疑有问题;发现不对头;有所警觉 If you smell a rat, you begin to suspect or realize that something is wrong in a particular situation, for example that someone is trying to deceive you or harm you. 怀疑有问题;发现不对头;有所警觉
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If I don't send a picture, he will smell a rat.
如果我不寄出照片,他将有所察觉。
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Though Lloyd George's behaviour seemed curious, Haig still did not smell a rat.
尽管劳埃德·乔治的行为古怪,黑格仍然没有任何怀疑。
SYN suspect something, doubt someone, distrust someone, mistrust someone
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Image of rat