常用的是：keep healthy
t as rain
I felt awful yesterday, but today I feel right as rain.
昨天我很不舒服，但是现在我完全好了.
as a fiddle
My father is fit as a fiddle.
我的爸爸身体健康.
the pink
She is in the pink .
她身体非常健康.
4.I can't think but that I'm healthy。
健康至上.
5. Bill is in the best of health.
比尔身体非常好.