1．complain ( v.）

to say that you are annoyed,unhappy or not satisfied about somebody/something

抱怨;埋怨;发牢骚

用法：

~to sb.(about/at sth.)

eg:She complained to me about his rudeness. 她向我诉苦说他的粗鲁。

衍生:

compliant n.complaining

抱怨;埋怨;不满

eg:The road-works caused much complaint among local residents. 修路引起周围居民很多怨言。