苦

HSK 4

kǔ

bitter; troublesome

hardship; pain; to suffer; to bring suffering to; painstakingly

他很苦地工作。

Tā hěn kǔ de gōngzuò.

He works very hard.

她忍受着痛苦。

Tā rěnrèn zhe kǔtòng.

She endures the pain.