蔡一诺1989
be used by被---所用
be used for被用于---
be used as被用作---
be used to---习惯于
used to do过去常常做---
达宝利姜广丛
sth. be used to do ...sth. be used for doing...e.g. The pen is used to write. The pen is used for writing.注意和“习惯做……”“过去常常而现在不……”区分一下哈
PK从来没赢过
是不是想问:“什么东西被用于干什么”怎么用英语说?应该是“be used to do” 例:Keys are uesd to open the doors.要将它与"used to do"和"be used to doing"区别开来。 used to do:过去常常做某事 例:I used to go to school by bike. be used to doing:习惯于做某事 例:I'm used to drinking coffee while reading.
优质英语培训问答知识库