英语句型区分be used to do Sthused to do Sthbe used for doing Sth_英语解答

英语句型区分
be used to do Sth
used to do Sth
be used for doing Sth

人气：270 ℃　时间：2019-10-31 01:19:00

解答

be used to do Sth 习惯于做某事
used to do Sth 过去曾做某事
be used for doing Sth 被用于做某事