<iframe title = "练背动作教学|哑铃划船怎么做?(看完必会)" width="100%" height="600" src="https://www.youtube.com/embed/HwZ2RRCN8Bo?rel=0&autoplay=1&autoplay=1&cc_load_policy=1&hl=zh&modestbranding=1" frameborder="0" allowfullscreen></iframe> <br>自由重量练背的王牌动作,跟我学起来!
Alex ,下次可以教 chest dip & tricep dip 吗?常常在这个机器上不懂要用什么角度针对下胸或者三头肌