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English definition of “fool's errand”

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fool's errand

noun [C] uk   /ˌfuːlzˈer.ənd/ us  
an effort that is unlikely to be successful: It's a fool's errand trying to get Lena to join in anything.
Translations of “fool's errand”
in Chinese (Traditional) 徒勞無功的努力…
in Chinese (Simplified) 徒劳无功的努力…
(Definition of fool's errand from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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