区别：意思不同。keep fit 是保持身材(多指锻炼的)好，keep healthy 是指身体健康状况良好。

keep fit 的相关短语：

keep-fit 体操 ; 健身 ; 瘦身 ; 健身休闲体育

keep-fit market 保健市场

keep-fit studio 健身房

keep your fit 保持你的健康 ; 保持您合适 ; 保持您的契合

To Keep Themselves Fit 为保持健康

Keep-fit massage ****

keep oneself fit 保持健康

keep-fit gymnastics 健身体操

keep fit 的相关句子：

1、We can keep fit by going in for exercise.

我们可以通过参加体育锻炼来保持健康。

2、To keep fit, we often take part in physical exercise.

为了保持健康，我们经常参加体育锻炼。

3、I think you`ve heard the saying, “A sound mind dwells in a sound body.” I have always tried my best to keep fit for my work.

我想你听说过这样一句话:“健全的心智寓于健全的体魄。”为了我的工作，我总是千方百计地保持健康。

4、We walk out regularly to keep fit.

我们经常出去散步以保持健康。

5、Teenagers who want to keep fit should not skip breakfast, as a US study in the March issue ofPediatrics showed that adolescents who skip morning meal have a higher risk of beingoverweight.

美国儿童健康报的三月期刊上有一份研究显示，那些不吃早餐的青少年更容易招致肥胖。因此要想保持健康千万不能不吃早餐。

keep healthy的相关短语：

Keep Yourself Healthy 保持健康

Keep a Healthy Life 健康人生

keep oneself healthy 使自己保持健康

To Keep Ourselves Healthy 为保持健康

keep fit healthy 保持健康

keep p healthy 保持健康

To Keep Being Healthy 为保持身体健康 ; 为连结身体健康

keep fitstay healthy 保持健康

Keep myself healthy 使我自己保持健康

Keep healthy的相关句子：

1、Keep healthy snacks at your desk or in your car or wherever you go.

放一些健康的零食在你的桌子上、车里，或者任何你在的地方。

2、That’s why we are talking about one should keep healthy in daily work.

这就是为什么我们要讨论如何在日常工作中保持健康的原因。

3、One of the best ways to ensure you keep healthy and stay on track is to keep a food journaland become really aware what you eat.

确保你保持健康并维持良好状态的最好方式之一，就是记录你摄取的食物，并真正使你知道你到底吃了什么。

4、Keep healthy first if you want to become wealthy.

如果你要变得富有，那么就先保持健康吧。

5、I like going to school by like, because I think I can keep healthy by riding.

我喜欢骑自行车上学，因为我可以通过骑车保持健康。