作介词穿过的区别
through / past / across 区别: 都可作介词，“穿过”，前常有位移动词(以下黑体部分)。
He climbed through the window and saw what he could take away. （从窗户内部经过）
He went past me without saying any words. （从我旁边经过）
He swam across the river. （从河的表面经过）
位移动词 + past 有时相当于动词pass; 位移动词 + across有时相当于动词cross.
学识谷
