fool's errand

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fool's errand

BrE

/ˌfuːlz ˈerənd/

NAmE

/ˌfuːlz ˈerənd/

noun

[singular]

a task that has no hope of being done successfully 徒劳无益的差事

◆He sent me on a fool's errand. 他派我去干白费力的事。