Levophanol
[药]左吗南(商品名, 左旋-3-羟-N甲基吗啡烷, 止痛药)
🗣️ 情景例句
It's pure fiction.
完全是捏造。
Where is the boarding gate for this flight?
这班飞机的登机门在哪儿？
I want to improve, but I don't know how.
我想提高它，但又不知道怎么样才能提高。