use sth to do sth的do在这里是什么意思

use sth to do sth use sth doing sth还是use sth to do sth use sth to do sth =use sth for doing use to do sth.的中文意思 “use to do sth”用法 use to do sth等于 use to do sth和use doing sth use的用法.used to do sthbe used to do sth be used to doing sth use sth to do sth和use sth for dong sth有什么区别 use sth to do sth相当于use sth for doing sth 英语：“used to do sth”的过去式是“didn't use to do sth”吗? use sth.to do sth.和do sth.with sth.意思一样吗