Quadric
a. 二次的\\nn. 二次曲面
🗣️ 情景例句
Does that mean that I can see you again?
是不是说我可以再见到你？
That's enough!
真是够了！
Poison to a snake is merely a luxury; it enables it to get its food with very little effort, no more effort than one bite.
毒液对毒蛇来说只不过是一种舒适生存的优越手段，它使蛇不用费多大力气就能捕获到食物，轻咬一口即可。