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
Yes, both. Last trip I fished a little and hiked three miles.
是的，两者都做。上次出去时，我钓了一会儿鱼，又步行了三英里。
The wife is the key of the house.
妻子是一家的钥匙。
Which person do you think is qualified for the job?
你认为哪一个人能胜任这份工作？