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
Where do I board my train?
我的座位在哪儿？
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
The French authorities had the plane packaged and moved in parts back to France.
法国政府让人把飞机包装起来，一部分一部分地搬回法国。