Quadtree
[计] 四树, 四叉树
🗣️ 情景例句
That's it. That's it.
对了， 就这样。
One sows another reaps.
不劳而获。
During the summer, I noticed tat the leaves of the tree were beginning to wither.
到了夏天，我发现树叶开始枯萎，