Nitrososubstitution
[医] 亚硝基取代[作用]
🗣️ 情景例句
I'm sure you are right.
当然你是对的。
An evening red and a morning grey, is a sign of a fair day.
晚霞红如火，晓色青如灰，定是晴朗天。
Did you get our packing specifications?
你收到我们的装箱说明书了吗？