au courant是什么意思 au courant怎么读
au courant的英文翻译是什么意思，词典释义与在线翻译
Adjective:- being up to particular standard or level especially in being up to date in knowledge;
"kept abreast of the latest developments"
"constant revision keeps the book au courant"
"always au fait on the latest events"
"up on the news"
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