be set to do something和be bound to do something的区别
be set to do something和be bound to do something的区别
it+be+adj+to do something和it+be+adj+doing something的区别
be up to do something
be used to do something 和be used for doing something有没有区别
be to do something和be doing something有何区别
have something to do与have something to be done 的区别
be sure to do和be possible to do和due bound有何区别
like doing something 和like to do something 的区别
Do you have something to eat 和Do you have something to be ea
be out to do something是什么意思?
be+形容词(difficult) to do something造句
something should be done to do对吗