grouch
noun /ɡraʊtʃ/
/ɡraʊtʃ/
(informal)- a person who complains a lot
好抱怨（或发牢骚）的人 - a complaint about something unimportant
（对小事的）抱怨，牢骚
词源late 19th cent.: variant of obsolete grutch, from Old French grouchier ‘to grumble, murmur’, of unknown origin. Compare with grudge.