complain n about抱怨;对他发牢骚
complain n about the problem就某件事情抱怨
to complain loudly about something大声抱怨某事
Complain about other patroils投诉其他客人
Complain about extra work抱怨加班
complain about high prices因物价太高而发牢骚
complain about these things抱怨过这些事
Complain about loneliness抱怨孤独
Complain about the weather抱怨天气不好;抱怨天气