across (介词)横过,穿过,指从……的一边到另一边
I swam across the river.
through （介词）穿过,通过,指穿过两边（从内部）.We walked through the forest.
cross (动词)穿过
over(介词)在……上面过I walked over the river.(指从桥上过)
across,through,over,cross区别和用法
across (介词)横过,穿过,指从……的一边到另一边
I swam across the river.
through （介词）穿过,通过,指穿过两边（从内部）.We walked through the forest.
cross (动词)穿过
over(介词)在……上面过I walked over the river.(指从桥上过)