through,across和on的区别

问题描述:

through,across和on的区别

through 是在里面“通过,穿过” 指四周有东西.across 是指从一边到另一边“横过,渡过” on 是指在表面“在...上面”
如:through the streets 走街串巷,across the street 横过大街.