汗 + Verb / Standalone
The noun 汗 (hàn) means "sweat" or "perspiration." It refers to the moisture produced by the body during physical exertion or heat. It appears in expressions like 流汗 (to sweat) and in classical poetry such as 汗滴禾下土 meaning "sweat drips onto the soil beneath the crops."
跑完步以后,他满头大汗。
pǎo wán bù yǐhòu, tā mǎn tóu dà hàn.
After finishing his run, he was drenched in sweat.
天太热了,衣服都被汗水湿透了。
Tiān tài rè le, yīfu dōu bèi hànshuǐ shī tòu le.
It's so hot that my clothes are completely soaked with sweat.
她紧张得手心全是汗。
Tā jǐnzhāng de shǒuxīn quán shì hàn.
She was so nervous that her palms were covered in sweat.