山，沙漠，森林，海滩，马路等哪些用through/across/cross/over?

cross the road = 过马路
across the road = 在对面
cross over mountain = 爬过
through the mountain = 通过，经过
across the mountain = 山对面
through, across, over 在这里 不可以用作动词
cross through, pass through, walk through,cross over, walk across, ... 应该这样用

Walk over the mountain(山）
Walk across the road./Cross the road.
Walk through the forest（森林）/dessert（沙漠）.
（从表面走用cross /walk across)
(从内部穿过用through)
(路过用past)
其他的...... 就看英语书

除了forest用through,其它都用across或cross

cross是穿过一个平面空间
through是穿过一个立体空间