You need to have a good rest.

你需要好好休息。

You look very tired, you need a good rest.

你看起来很累，你需要好好休息。

She looks very tired and needs a good rest.

她看起来很劳累，需要好好休息。

After the exam, you should have a good rest.

考试结束后，你应该好好休息一下。

After a long journey, we all need a good rest.

在长途旅行后，我们都需要好好休息。

The doctor said I need a good rest to recover.

医生说我需要好好休息才能恢复。

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

旅行回来辛苦了，好好休息吧。

He felt exhausted after moving and needed a good rest.

他在搬家后感到筋疲力尽，需要好好休息一下。

After a whole day of work, he need a good rest.

经过一整天的工作，他需要好好休息。

The kids played all day, now they need a good rest.

孩子们玩了一天，现在需要好好休息。