Quadrics
二次型
🗣️ 情景例句
So I know.
所以我了解这些。
Certainly. Here you are.
当然罗。给您。
Eventually chains were fixed to one end of the dish and a powerful winch was put into operation.
不过，他们终于将链条固定在盘子的一端，一台大功率的绞车开动起来。