Alkylene
亚烃基, 烯化, 烷撑
🗣️ 情景例句
Very good. But, unless I miss my guess, you should say something about your family, too.
非常好，但是我除非我想错了，不然你应该谈谈你的家庭。
Well, goodbye and have a good trip!
那么，再见，祝你一路顺风。
That's right. On Friday. I'm going there for the holiday with my parents.
是的，星期五（动身）。我打算到那儿和我的父母一起度假。