双元音对应单词

在48个音标里，双元音有8个：[ei]、[ai]、[ɔi]、[ɛə]、[uə]、[iə]、[au]、[əu]

（1）含有双元音的单词：delay ,white,oik,sure, swear等等。

（2）含有双元音的句子：I really want to tell you that the students have designed a plan to visit the outer space.等等。