Conicity
n. 锥削度
🗣️ 情景例句
Do you want to get together and study sometime?
你想和我一起学习吗？
Please sign a copy of our Sales Contract No.156 enclosed here in duplicate and return to us for our file.
请会签第156号销售合同一式两份中的一份，将它寄回我方存档。
It's dangerous!
危险！