为什么不能用across the street来表示穿过街道的意思,而必须用cross the street

为什么不能用across the street来表示穿过街道的意思,而必须用cross the street Be careful when you cross the street.为什么用cross而不用across? across the street和cross the street across the road与 cross the street的区别 walk across the street 还是 walk cross the street? 用across the street造句 “go through the street”还是“go across the street",为什么? cross the street=? across from the street through the street、across the street 的区别是什么?急 cross the street的否定回答 Cross the street的否定句