Perspecitive
透视图
🗣️ 情景例句
I promise not to think about the city.
我保证不再去想城里的事。
Are these books all yours?
这些书全是你的吗？
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。