Allylic
烯丙基的
🗣️ 情景例句
But Christmas is the most important holiday of the year.
但是圣诞节是一年当中最重要的节日。
I appreciate your helping me.
感谢你的帮助。
Hi, it's Bob here. Listen. I want you to play in a concert for me.
嗨，我是鲍勃呀！听着，我想要你为我在一个音乐会上演出。