Tetranitromethane
n. [化]四硝基甲烷
??? 情景例句
What's that?
什么事？
You'll be sick, if you aren't careful.
你不小心的話，就會生病。
The airport was built years ago, but for some reason it could not be used then.
機(jī)場是許多年前建的，但由于某種原因當(dāng)時未能啟用。