Denitromethane
二硝甲烷
🗣️ 情景例句
What's the problem?
什么问题？
The first step to virtue is to abstrain from vice.
不作恶是走向美德的第一步。
The men got such a fright that they dropped the bag and ran away.
这两个人吓了一跳，扔下提包逃跑了。