au courant
[əuku:'rɔŋ]
（法）熟悉时事的；（法）熟悉的
同义词
参考例子
1.constant revision keeps the book au courant ;
不断的修改使这本书保持先进；
2.eg. By reading reviews, you can keep au courant with new developments in literature
你读评论可熟知文学、电影、电视、剧院等的新发展。
3.With designer T-shirts and jeans in the hefty three figures, there are men for whom staying au courant is worth the investment.
对于那些穿着宽大的体恤和牛仔裤走在时尚前沿的男士来说把钱花在这上头是值得的。
英文解释
adj.
1.being up to particular standard or level especially in being up to date in knowledge