Acetylenyl
乙炔基
🗣️ 情景例句
What's wrong, Susan?
有什么问题吗， Susan？
If we are bound to forgive an enemy,we are not bound to trust him.
即便我们决心宽恕敌人，也决不能相信敌人。
The episode could reasonably serve as a unique epic of royal espionage!
这一幕历史可以说是王室谍报活动中最精彩的篇章。