英语单词分类 轻松记单词

up on

up on基本解释

熟悉; 精通

up on同义词

up on英英释义

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"