happen和appear区别是什么求大神帮助

happen和appear区别是什么求大神帮助 appear和happen的区别 appear 和 happen的区别 befall和happen to的区别是什么? appear 和seem的区别 happen to和happen at的区别： happen with和happen to的区别 appear to concern 和appear concerned的区别 appear,take place,happen的区别不要纯翻译的区别啊,要语法上的 请问happen和take place的区别是什么? take place 与 happen的用法和区别是什么? appear happen change有什么区别要求说明详细,否则检举! APPEAR 和 SEEM 有什么区别 appear和show up 的区别? happen to 与happen to have done 的区别是什么? appear动词形式和反义词是什么? happen on 和 happen to 有什么区别正确. chance/happen/seem/appear/pretend to do