querulous
词根词缀：
quarrel n. 争吵
quar〔= quer〕抱怨 + rel → 抱怨引发争吵 → 争吵
quarreler n. 争吵的人，喜欢埋怨的人
quarrel 争吵 + er 表名词 → 争吵的人，喜欢埋怨的人
quarrelsome adj. 喜欢吵架的，好争论的
quarrel 争吵 + some 具有…倾向的 → 喜欢吵架的，好争论的
querulous adj. 抱怨的
quer 抱怨 + ulous …的 → 抱怨的
query n. 问题，疑问
quer 抱怨 + y 表名词 → 抱怨是因为有疑问 → 疑问
query v. 对…表示怀疑；询问
数据来源：新东方英语词汇速记大全
相关例句：
He became increasingly dissatisfied and querulous in his old age.
到了晚年，他愈感不满，牢骚不断。
Years of being an underpaid and underappreciated factory worker had made him into a querulous, bitter old man.
多年来身为一个低收入、低地位的工厂劳工，使他成为一个爱发牢骚、满腹委屈的老头。
The clinical manifestations involve vertigo, headache, vexation, querulous, tinnitus and deafness, insomnia and dreamful sleep, and so on.
其主要临床表现为眩晕，头痛，心烦易怒，耳鸣耳聋，失眠多梦等症状。
He was also petty, unreasonably querulous, and mean. Fleur was impatient with her father for interfering, but she criticized Marjorie for creating an unpleasant scene.
他还是个气量狭窄，无事生非，平庸刻薄的人。弗勒对父亲的好管闲事很不耐烦，但也批评马乔里无事生非。
It was a very sharp attack, and because he was not used to illness, he was querulous and difficult.
这次的病是非常厉害的，而且由于他平常不大生病，所以容易动怒，很难侍候。
The querulous old man refused to be put on the shelf.
那个爱抱怨的老人不肯让人撇在一边。