在挺举着地时刻，箭步后腿下蹲过低，后腿后伸过长，容易导致足跟提不起，不利于后面的箭步收腿。
In the clean and jerk landing time , a sudden big stride forward under the hind legs crouched low , hind legs stretched out after too long , easy to cause the heel lift not , go against the back of the arrows step the leg .
箭步蹲