有健康才能尽享生活。用英文怎么说？

Only by keeping fit can you enjoy your life .
or:Keep fit and you will live a happy life.
or:Be in good heath and you will live happily.

Has the health to be able to enjoy the life

Keep healthy first, and then there comes a happy life (and then talk about enjoying your life).

Keep healthy ,enjoy good life

Keeping healthy can lead you to enjoy your life.