Regular exercise can keep you in good health.

定期运动能让你保持良好的健康状况。

He handed her a piece of paper certifying (that) she was in good health.

他递给她一份她的健康证明书。

You think I should send this child back in this condition, when she has come in good health?

她来的时候可是健健康康的，你认为我应该在这个孩子在这种身体条件下把她送回去吗？

If you want to be an excellent runner like Liu Xiang, you must be in good health and be prepared to go through much hard work.

如果你想成为一名像刘翔一样优秀的运动员，你必须保持身体健康，准备好经受大量刻苦的训练。

She looked to be in good health.

她显得很健康。