across past through的区别（acrossthroughover和past的区别）

across和through都用于表示“穿过”。acorss着重指从一条直线或一物体表面的一边到另一边，表示游渡，乘船过海或过河时用across;through含有“从......中间穿过”之意。

He can swim across the river.

他能游过这条河。

She had to push her way through the crowd to get to her son.

她必须挤过人群才能到她的儿子面前。

over多指在空间范围上“穿越”，面past指“经过”。

The plane flew over a line of mountains in the south-east.

飞机从东南方的一座座同上飞过。

They walked past a tall tree.

他们从一棵大树旁走过。