You're in peak shape. 你如日中天。
You're as fit as a fiddle. 你的健康情形良好。 You're too skinny. 你太瘦了。
I've let myself go to pot too long. 我已太久没注意自己的身体。 She has no muscle tone. 她没有结实的肌肉。
A little exercise won't kill you. 稍微运动一下,不会要了你的命。 He seemed to be in the pink. 他看起来很健康。
He's in tiptop shape. 他的健康情况极佳。