总的来说，要保持身体健康就要锻炼，保持均衡饮食和保持一个好心情。

In general, keeping fit needsto do exercise, keep a balance diet and keep a good mood.

总的来说，要保持身体健康就要锻炼，保持均衡饮食和保持一个好心情。

In general, keeping fit needs to do exercise, keep a balance diet and keep a good mood.

最后但并非最不重要的是要经常保持一个好心情，这样做起事来才可以事半功倍。

Last but not least, always keeping a good mood can make half the work with double results.