a collection of streets和 a group of post office

a collection of streets和 a group of post office a collection of a matter/waste/collection of a group of用法 a group of one of a group of The post office is ____the left of the shop.A.of B.on C.acro a troop of 和a group of 的用法区别 （英语）a group of building with streets on all sides.翻译.一组与四周的街 looking a group of strange looking faces是什么意思,和a group of st a group of man 还是a group of men a group of enemies or ,a group of enemy