He is a jack of all trades and master of none.
他样样都懂一点，但都不精通。
youdao
Generalists are often derided as a jack of all trades, master of none, yet their broad thinking and diverse interests enable the integration of ideas that leads to true breakthroughs.
FORBES: The Connection Between Creative And Crazy
应用推荐
模块上移
模块下移
不移动