When you bend your elbow, the muscles of the arm contract.
当你弯曲肘部时,手臂上的肌肉就收缩。
When you bend your elbow , you contract the muscles of the arm.
你屈肘时,手臂的肌肉就会收缩。
The elbow may be resolved into straight section and a bend.
将回弯头分解为直管段和回弯两部分。
When you bend your elbow, you contract the muscles of the arm.
要从肘部弯曲手臂,就要收缩上臂正面的肌肉。
That is size head directly meet up behind the elbow bend.
那就是大小头后面直接接向上弯曲的弯头。
When you bend your elbow, you contract the muscles of the arm.
同时肘部轻轻弯曲,胳膊向后伸,这样你的肱二头肌就压在耳边了。
When you bend your elbow, you contract the muscles of the arm.
你屈肘时,手臂的肌肉就会收缩。
When you bend your elbow, you contract the muscles of the arm.
你屈肘时,手臂的肌肉就会收缩。
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