(每日一词）querulous

Querulous /ˈkwerələs/ adj. 爱抱怨的，爱发牢骚的

meaning: Someone who is querulous often complains about things.

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1) 联想：que- question 质疑

2) 联想：rul—rule 规则，管理，统治

3) 后缀：-ous 形容词后缀

e.g. He became increasingly dissatisfied and querulous in his old age. 到了晚年，他愈感不满，牢骚不断。