Improper quadric
[计] 异常二次曲面
🧩 词语组成解析
a. 二次的\\nn. 二次曲面
🗣️ 情景例句
We were exposed to the latest theories on child care.
我们接触过有关幻儿保育的最新理论。
I'm afraid not.
我想不是。
Spring is the best season of the year.
春天是一年里最好的季节。