In bowling ,the ball usually travels in the same direction in which your feet are aimed.为
问题描述：
In bowling ,the ball usually travels in the same direction in which your feet are aimed.为
逗号后面的句子为何有2个in?难道是aim in?
我想问的是最后那个in 是怎么来的，不能去掉吗？
答
从句还原是：your feet are aimed in direction ,然后which 代替direction in提前