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English definition of “what's sth in aid of?”

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what's sth in aid of?

UK informal
said when you want to know the reason for something: What's all this shouting in aid of?
Translations of “what's sth in aid of?”
in Chinese (Traditional) …有甚麼用?…是怎麼回事?…
in Chinese (Simplified) …有什么用?…是怎么回事儿?…
(Definition of what's sth in aid of? from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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