unexpected,accidental,casual 区别?unexpected,accidental,casual 都有“意外”之意,有何区别?

unexpected spike expected an unexpected u... reveal the unexpected是什么意思啊? Children unexpected ideas often surprise the adults. unexpected error occured什么意思如题 如何引入life is full of unexpected 在business里面unexpected occurrence是什么意思 非常突然 EXPECT THE UNEXPECTED怎么样 Unexpected data was found while parsing the an unexpected incident什么意思例句 You fall in love with the most unexpected person at the most unexpected time. 什么意思? unexpected,accidental,casual 区别?unexpected,accidental,casual 都有“意外”之意,有何区别? 跑跑卡丁车出现Parental Control:Unexpected behaviour(Emergency Text)Parental Control:Unexpected behaviour(Emergency Text) She was killed ____ a traffic accidentA byB inC onD at并说明原因 it is___that am responsible for the accidentA.I B.you C.he D.she _________ no one was killed in the accidentA Fortunately B Fortunate C Unfortunately D Unfortunate unexpected 网络上查询是形容词,“意外的” 但是为什么可以只是加the,成为the unexpected这样是说unexpected也是名词吗? I believe that paid,always can get unexpected harvest.