Collineation
直射（变换）, 同射变换
🗣️ 情景例句
He lost his money due to his own carelessness.
由于大意，他丢了钱。
Penny wise and pound foolish.
小事聪明，大事糊涂。
For example, we make bicycle parts and tractor parts. Any questions?
例如，我们制造自行车和拖拉机的零部件。 有什么问题吗？”