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English definition of “smell a rat”

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smell a rat

to recognize that something is not as it appears to be or that something dishonest is happening: He's been working late with her every night this week - I smell a rat!
Translations of “smell a rat”
in Chinese (Traditional) 發覺有可疑之處,感到其中有詐…
in Chinese (Simplified) 发觉有可疑之处,感到其中有诈…
(Definition of smell a rat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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