complainer
/kəmˈpleɪnə/ 11A complainer is someone who complains a lot about their problems or about things they do not like. 抱怨者
noun [专属名词]老是抱怨的人
He was a terrible complainer – always moaning about something. 他真爱发牢骚—总在不停地抱怨。
单词造句:
He was a terrible complainer – always moaning about something. 他真爱发牢骚—总在不停地抱怨。