Denitromethane
二硝甲烷
🗣️ 情景例句
Nice to meet you, Mr. Carlson.
很高兴见到你 Carlson先生。
The doctor did not reveal to him his hopeless condition.
医生没有向他透露说他的病已经没治了。
He did everything very slowly.
他做什么都很慢。