Collineation
直射（变换）, 同射变换
🗣️ 情景例句
How come you look so tired?
你怎么看起来这么疲倦？
The lion is known by his claws (paw).
狮以爪闻名。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。