I can't be doing with people who complain all the time.
我無法忍受那些整天發牢騷的人。
Just because I don't complain, people think I'm satisfied.
就因為我不發牢騷，大家便以為我滿意了。
I'm going to complain to the manager about this.
我要就這件事向經理投訴。
I complained to the manager but I didn't get any satisfaction.
我向經理投訴，但問題絲毫沒有得到解決。
In the end, I just got fed up with his constant complaining.
他不停地發牢騷，終於使我厭煩了。
She left early, complaining of a headache.
她說自己頭疼，很早就離開了。