Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
Does the price include VAT?
这价钱是否包括增值锐在内？
People usually stay out very late on New Year's Eve.
新年夜，人们通常都出去到很晚。
Well, every time you get back at night, you drop your shoes on the floor.
唔，每一次晚上回来时，你都把鞋子丢在地板上。