used to do,used to doing,be used to do,be used to doing,有什么區(qū)別啊？

熱心網(wǎng)友

used to do過去常常做某事be used to do被用來做be used do ding 習慣于，表狀態(tài)get used to ding習慣于，表動作

熱心網(wǎng)友

used to do 過去常常 be used to do 被用來做某事 be uesd to doing習慣于做某事