Put another way, those are her prime mover muscles for adduction.

换句话说，这些是她内收的原动机肌肉。

Well, the act of raising my arms away from my body is called abduction, while moving them back down toward the body is called adduction.

嗯，把胳膊从身体上抬起的行为叫做外展，而将它们移回身体被称为内收。