辛苦 (xīn kǔ): เหนื่อยเหนื่อย

He works very hard and doesn't come home until very late every day.

Mom does housework every day; it's very exhausting.

Farmers work hard in the fields; we should cherish the food.

Although studying Chinese is hard, it's very interesting.

You've worked hard; please take a rest.

Farmers work hard in the fields every day.

This is a very arduous task.

You've worked hard; take a rest.

He worked hard all his life and finally had a good life.

Thanks for your trouble; you helped me deliver the documents so late.