一个杠铃片，重10磅，大卫，这是给你孩子用的？

Is this from one of your children, Dave or were you doing it yourself?

youdao

为了增加效果，练习的时候可以在腰上绑一个杠铃片或者用脚踝夹个哑铃。

For added benefit, tie a weight plate around your waist or grasp a dumbbell between your ankles or knees while performing this exercise.

youdao

为了增加效果，练习的时候可以在腰上绑一个杠铃片或者用脚踝夹个哑铃。

For added benefit, tie a weight plate around your waist or grasp a dumbbell between your ankles or knees while performing this exercise.

youdao