querulous
adjective formal uk/ˈkwer.ə.ləs/ us/ˈkwer.jə.ləs/
爱抱怨的，爱发牢骚的
often complaining, especially in a weak high voice
He became increasingly dissatisfied and querulous in his old age. 到了晚年，他愈感不满，牢骚不断。
Synonyms: fretfulwhiny
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