I've sweated over this for six months.

这件事我已经拼命干６个月。

I sweated blood to get that essay finished on time.

按时完成那篇作文我拚命地写。

He sweated away at his work with all his heart.

全心全意、勤勤恳恳地埋头工作。

The doctor sweated his patient.

的病人发汗。