Naphthalan
(=noftan)萘烷
🗣️ 情景例句
The smog in L.A. is caused by air pollution and water vapor.
洛杉矶的烟雾是由空气污染和水蒸气造成的。
What sort of medicine do you take?
你吃的是什么药？
I haven't heard from her for a long time.
我好久没有她的消息了。