Diphthongizes
vt. 使双重元音化；读作双元音\\nvi. 变为双元音
🗣️ 情景例句
This has been a long day.
这是个漫长的一天。
Goodbye, it was nice meeting you.
再见，很荣幸认识你。
so America and the EU have been trying to reach a deal which would eliminate the need to double-test many products.
美国和欧洲一直在寻求达成协议，以便为许多产品取消双重检查。