Ephetonin
埃弗托宁(麻黄碱异构体)
🗣️ 情景例句
May I use a knife and fork please?
我可以用刀叉吗？
He is supposed to be there on time.
按理说他应该准时到那儿。
Yes, Miss Yang, said Meimei.
“是的，杨小姐，”梅梅说