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English definition of “be at a loss”

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be at a loss

C2 not to know what to do or say: I'm at a loss to know how I can help you. It was unlike him to be at a loss for words.
Translations of “be at a loss”
in Chinese (Traditional) 不知所措, 不知說甚麽…
in Chinese (Simplified) 不知所措, 不知说什么…
(Definition of be at a loss from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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