Dichloromethylation
双氯甲基取代作用(引入两个氯甲基)
🗣️ 情景例句
Will I be able to receive the goods by the end of September?
我可以在9月底以前收到货吗？
Forget not that you are a man.
不要忘记你是一个人。
Look out! The pan's on fire
当心！油锅起火了。