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1·To do a squat to biceps curl, you start with your feet about shoulder-width apart, spine straight and your core stable.

在做这个动作时，双脚与肩同宽，背挺直，保持重心稳定。

2·Dumbbell Concentration Curl is one of the biceps exercises I do.

哑铃集中柯尔是其中一个二头肌练习我。