有区别go along 强调水平方向,不分路两端go down 区分了上下,有两头的概念举个例子具体说明吧1I go along the road.(我沿着大街走）不管这条街是朝哪个方向,你是沿着走.强调于墙平行而行.2I go down the road.（我沿...