used to do, be used to doing , be used to do 有什么区别?

used to do, be used to doing , be used to do 有什么区别? used to do used to doing be used to do be used to doing与used to do的区别 used to do ；used to doing ；be used to do ；be used to doing 几 used to do,be used to doing和 be used to do的区别,并举例说明 get/be used to doing used to do /be used to do的区别 be used to doing,be used to do,used to do,be used for,be use use to,be used to do,be used to doing和be used for的区别 be used to do 和doing区别 used to do 和be used to doing 有什么区别? 急!求be used to do be used to doing used to doing be used for be used to do sth.used to do sth.be used to dong sth.之间有什么区别