Hyperboloid
[计] 双曲面
🗣️ 情景例句
I have been exposed to languages such as English, Spanish, and French.
我接触过英语、西班牙语和法语。
While Mike was an only child, he would amuse himself with his toys.
麦克还在孩提时，常常独自玩玩具取乐。
He was just falling asleep when there was a loud knock at the door.
他刚要入睡，就有人很响地敲门。