highway superhighway interstate freeway expressway turnpike有

highway superhighway interstate freeway expressway turnpike有 superhighway,freeway,highway,expressway 有什麼分别? highway/ expressway/ thruway /freeway有什么区别? freeway.highway .expressway.这些都有什么区别,谁给讲讲 expressway,highway 有什么区别? expressway与highway有什么区别 expressway和freeway的区别? highway 和 expressway 有什么区别（知道的进） highway,freeway,metro,subway区别 翻译句英文：The interstate highway has gotten and continues to get at the highway 和 on the highway 有何区别. highway有高速的意思吗?