VERB
挑剔；吹毛求疵；发牢骚
If you say that someone is carping, you mean that they keep criticizing or complaining about someone or something, especially in a way you think is unnecessary or annoying.
例句
He cannot understand why she's constantly carping at him...
他不明白为什么她总是找他的茬儿。
This was the man whom other trainers love to carp about.
这就是老被其他教练挑毛病的那个人。