Conicograph
二次曲线规
🗣️ 情景例句
May I help you, sir?
需要我帮忙吗，先生？
I've definitely decided to go to California.
我毫无疑问决定了去加利福尼亚。
This evening the cave was ours. It belonged to no one else.
今天晚上，山洞是我们的，它不属于别人。