他感到背部和身体的肌肉非常酸痛。

He felt soreness in his back and ___body muscles.

运动后要记得给身体补充足够的水分。

Remember to hydrate your ___body properly after exercising.

他每天健身，现在体型看起来很棒。

He works out every day, and his ___body looks fantastic now.