Levorphan
左吗喃; 羟甲左吗喃
🗣️ 情景例句
Let's see some action!
赶快行动起来吧！
In college I majored in science.What was your major?
在学院我主修了自然科学，你主修了什么？
There is hope so long as he is with us.
只要他在就有希望。