“How to keep health?”和“How to keep healthy?”有什么区别

“How to keep health?”和“How to keep healthy?”有什么区别 how to keep health How to keep health? How to keep healthy how to keep healthy等于什么短语 How to keep mental health? how to keep psychologically healthy how to keep healthy?作文 作文HOW TO KEEP HEALTHY 作文：how to keep healthy 2.how to keep fit 中fit可否用healthy?Fit与healthy有何区别 英语作文 how to keep good health?