博而不精

博而不精

bó ér bù jīng

Extensive but not refined; to know something about everything; jack-of-all-trades, master of none

Traditional:

没有

他喜欢涉猎各种领域，但是因为兴趣太广，常常被人说是博而不精。

He enjoys dabbling in various fields, but because his interests are so wide, he is often criticized for being a jack of all trades and master of none.