Ethinylation
乙炔化
🗣️ 情景例句
Leave nothing to chance.
做任何事情都要有把握。
Do as the Romans do(or Do as they do at Rome).
入乡要随俗。
The seasons of the year in England and the USA are nearly the same.
在英国和美国，一年之中的季节几乎与中国相同。