tired，exhausted，worn out，fatigued，stressed out 累的
I’m tired. 我累了。
physically and mentally exhausted身心疲惫
I’m physically and mentally exhausted after tedious hours of work.
沉闷乏味的一天工作之后，我身心疲惫。
to feel completely/utterly exhausted
感到筋疲力尽
I tossed and turned all night, and woke up feeling worn out the next morning.
我整夜辗转反侧，第二天早上醒来时感到筋疲力尽。
Before the race, he is fine. But afterwards he is worn out.
赛前他状态很好，赛后就筋疲力尽了。
He seems older, more easily fatigued.
他看起来老了，更容易疲劳。
Winter weather can leave you feeling fatigued and tired.
冬季会让人感觉疲乏无力。
Fatigue driving leads to high incidence of traffic accidents on expressway.
疲劳驾驶导致高速公路交通事故的高发生率。
I'm under a lot of pressure lately, I'm almost stressed out.
近来我的压力很大, 让我快崩溃了。