工作了一整天，他感到非常疲惫。

Gōngzuò le yī zhěng tiān, tā gǎndào fēicháng píbèi.

After working the whole day, he felt very exhausted.

长时间的学习会让人感到疲惫不堪。

Cháng shíjiān de xuéxí huì ràng rén gǎndào píbèi bùkān.

Prolonged studying can make a person feel utterly exhausted.

战争过后，士兵们都是疲惫不堪的。

Zhànzhēng guòhòu, shìbīng men dōu shì píbèi bùkān de.

After the war, the soldiers were all exhausted.