Meanwhile gently bending the elbow, arm, back extension, so your biceps on the pressure in their ears.

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。

youdao

Meanwhile gently bending the elbow, arm, back extension, so your biceps on the pressure in their ears.

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。

youdao