As I approached the gates I switched off the headlamp of the car_______ prevent the beam from swinging in through the window and waking Jack.
填写so as to
swing in 词组是什么意思?词典上没找到。
找不到合适的图片,差不多是这个意思吧
假设你句子里的window是指房子的windowd的话
至于为什么用swing, 大概是路面有高低起伏
为什么用个in? 它是个副词,就像up/down等一样,表示方向
swing + in 朝里面方向晃