Hyperparaboloids
超抛物体
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
How much is a round-trip ticket to Beijing?
一张到北京的来回票要多少钱？
but because of thedifferent thoughts that exist in the minds of their inhabitants.
而是由于居民头脑中的思想不同。