fail to do与fail (in) sth有什么区别啊
fail to do与fail (in) sth有什么区别啊
fail sth.和fail in sth.有什么区别?
fail in sth..fail to do sth.啥意思?
fail to do sth和fail in doing sth的区别
fail to do sth与forget to do的区别
fail和fail in 有什么区别?
fail to do和 fail doing有区别没?
fail to do sth=?
fail后可接to do sth吗,不是接fail in doing sth?为什么?
fail的几种用法fail in sthfail in doing sthfail to do sthfail sth
fail to do sth解释下.
forget to do sth和fail to do sth 的区别