Quadtrees
四元树
🗣️ 情景例句
It's your fault.[
这是你的错。
All the neighbors helped us move in.
邻居们都帮忙为我们搬家。
Look, the falling leaves are all yellow. Lots of fallen leaves make the road yellow.
看那飘零的落叶，都是黄色的，黄色的落叶铺满的路面。