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English definition of “mind your p's and q's”

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mind your p's and q's

old-fashioned
to make an effort to be especially polite in a particular situation: I have to mind my p's and q's when I'm with my grandmother.
Translations of “mind your p's and q's”
in Chinese (Traditional) 注意自己的言談舉止…
in Chinese (Simplified) 注意自己的言谈举止…
(Definition of mind your p's and q's from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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