最終更新日：2024/07/06
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(informal) to know a fair bit about something, to know a thing or two about something, to know one's stuff, to know one's onions
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元となった辞書の項目
en connaître un rayon
verb
(informal) to know a fair bit about something, to know a thing or two about something, to know one's stuff, to know one's onions
