complainer造句

1、He was a terrible complainer - always moaning about something.
他特别爱发牢骚，老是抱怨这抱怨那。

2、He was a terrible complainer – always moaning about something.
他真爱发牢骚—总在不停地抱怨。

3、How can one stop being a chronic complainer according to the author?
作者认为一个人怎样做才能戒掉习惯性抱怨？