Quadtree
[计] 四树, 四叉树
🗣️ 情景例句
The bible is a literary classic of the ancient world.
圣经是一部古代文学经典著作。
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
The constitution guards the liberty of the people.
宪法保护人民的自由。