affair、incident、matter、thing都有什么区别?

affair、incident、matter、thing都有什么区别? affair event incident有什么区别 affair ,matter ,thing 有什么区别?这三个都有事情的意识,但具体有什么区别那? event, matter, thing, affair这几个单词有什么不同? affair business event matter thing 的区别 affair,thing,matter,business的区别 incident accident thing matter的区别,最好说出其用法的区别详细一些谢谢 incident,accident,event,affair 和 business的用法区别? event. case, incident, affair 四个词的区别 event 和affair有什么区别啊 affair和event有什么区别? occurrence,incident有什么区别?要简明,