题目内容：

下面句子中over 的用法 the men are standing under the bridge ,they are not walking over it .

优质解答

over是“在..上面.”是个介词,表示表面接触,就是人的脚接触到了桥面.
over还可以是“在..上方”,表示表面不接触,如：The plane is flying over our heads.