Isoamylene
异戊烯
🗣️ 情景例句
What are you doing?
在做什么？
I'm glad to hear about your promotion.
我很高兴听到你升迁的消息。
My teacher's name is Miss Gao. At school I have a friend. His name is Li Lei.
我的老师是高小姐，我在学校里有一个朋友。他叫李磊。