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English definition of “what's the use of...?”

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what's the use of...?

( also what use is...?)
used to tell someone to stop worrying because worrying will not help: Try not to get depressed - after all, what's the use of worrying?
Translations of “what's the use of...?”
in Chinese (Traditional) (用於勸告某人不要爲某事擔心)…有甚麽用?…
in Chinese (Simplified) (用于劝告某人不要为某事担心)…有什么用?…
(Definition of what's the use of...? from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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