You get in great shape.

你还能保持一个很好的体型。

You are in great shape.

你的身材很好。

You're in great shape.

你的体形真棒！

Brian : Yeah, I was in great shape then.

布莱恩： 是的，我曾拥有过很棒的身材线条。

Marilyn: It's true. You are in great shape.

是的，你的身体非常棒。