1、I am always complaining about something.我总是怨天尤人.
2、I complained that the price was too high.我抱怨价格太高.
3、I complain that the food is not delicious.我抱怨食物不美味.
4、Don't complain without cause.不要无故抱怨.
5、I complained that he has broken my watch.我抱怨他弄坏了我的手表.