au fait

英[ˌəʊ'feɪ] 美[ˌoʊ'feɪ]
  • adj.精通的;熟悉的
  • AU abbr.天文单位(=AstronomicalUnit);[物]埃(=angstromunit)
  • fait n.行为;事实;契据
Adjective:
  1. 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"

    1. It's my first week here so I'm not yet au fait with the system.
      我刚来不到一个星期,对这里的制度还不太熟悉。

【邻近词汇】