身体各部

all parts of the body

锻炼身体

train one's body

少年和青年正是长身体的时期。

Childhood and adolescence is the period when the body grows.

身体弱

be in poor health

身体结实

be in strong health

有害身体

be harmful to one's health

保重身体

take care of one's health

你身体好吗？

Are you in good health?

他的身体不大好。

He's not in very good health.