1 sentence

1. 他在这些琐碎的细节上吹毛求疵，实在是浪费时间。

   tā zài zhè​xiē suǒ​suì de xì​jié shàng chuī​máo​qiú​cī, shí​zài shì làng​fèi shí​jiān.

   He is nitpicking over these trivial details, which is a real waste of time.

   Source: Dong Chinese Dictionary