Aerohydronautics
空中水间航行学, 空航水航学
🗣️ 情景例句
I know what you mean.
我懂得你的意思。
We can offer a discount in progressive stages according to the size of the order.
根据订购数量的大小，我们可提供累进的折扣。
Most of the parents will not be able to pay much money.
多数家长是付不起很多钱的。