疲倦

睡眠不足使我感到很疲倦。

shuì miǎn bù zú shǐ wǒ gǎndào hěn píjuàn.

Lack of sleep makes me very tired

他工作了一整天，现在非常疲倦。

tā gōngzuò le yī zhěng zǎoshēng, xiànzài fēicháng píjuàn.

After working all day, he is very tired