Propyl
n. 丙基\\n[医] 丙基
🗣️ 情景例句
Mr. Marker and his wife have invited me to a Christmas dinner.
马克先生和他妻子邀请我吃圣诞晚宴。
No, I can't go to bed till she says Good night to me.
不，除非她向我道晚安，不然我睡不着。
Do l have to
非做不可吗？