used to do sth和be used to doing sth中的used是什么词性?used to do sth和be used to doing sth中的used是什么词性?

used to do sth和be used to doing sth中的used是什么词性?used to do sth和be used to doing sth中的used是什么词性? be used to do sth. be used to dong sth 和 be used to do sth各有什么区别 be used to doing sth.和used to do sth.的分别 be/get used to doing sth和be used to do 用法区别~ 用be used to do sth 造句 be used to do sth造句 如何用（请用）used to do sth 和used be+adj和be use如何用（请用）used to do sth 和used be+adj和be used to doing sth.造句（分开造句） be used to do sth.used to do sth.be used to dong sth.之间有什么区别? Be used to doing sth,used to do sth ,be used to do sth 有什么区别 be used for doing sth和be used to do sth一样吗?两者意思有何不同? 用be used to do sth造句用be used to do sth造2句话! use to do sth和be used doing sth的意思 sth be used to do sth造句,多多益善 Be used to do sth Be used to doing sth 后者的to为何做介词? be used to do sth.be used doing sth.for one to talk to . used to do sth. used to do sth