Benzonaphthalin
[医] 苯甲酸萘
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
When can you pick up your ticket?
你什么时候可拿到车票呢？
At last I hung up the receiver.
我终于挂上了话筒。