Diphthongizes
vt. 使雙重元音化；讀作雙元音\\nvi. 變為雙元音
??? 情景例句
I'm an exchange student.
我是一名交換學生。
None preaches better than the ant, and she says nothing.
螞蟻不說話，但最善于說教。
Man-made satellites have been sent up into space by many countries.
許多國家都成功地把人造衛星送入了太空。