肌肉女孩的英文怎麼拼

The exercises are designed to strengthen your stomach muscles.

這些活動目的`在於增強你的腹部肌肉。

Muscles contract and relax during physical activity.

身體活動時肌肉收縮放鬆。

He didn't move a muscle.

他一動不動地站着。

The heart muscles contract to expel the blood.

心臟肌肉收縮以擠壓出血液。

The exercise consists of stretching and contracting the leg muscles.

此項訓練包括伸展和收縮腿部肌肉。