You've had a long day traveling, take a good rest.

旅行回来辛苦了，好好休息吧。

You've had a long day working hard on this project.

你为这个项目付出了很多，辛苦了。

You've had a long day taking care of the kids all day.

照顾孩子一整天，真是辛苦了。

You've had a long day at work today, get some rest early.

今天工作辛苦了，早点休息吧。

You've had a long day running around so many places today.

你今天跑了这么多地方，真是辛苦了。