Quadtrees
四元树
🗣️ 情景例句
Without coffee I could never get up in the morning.
不喝咖啡我早上起不来。
It seems he's afraid.
看起来他好像很害怕。
You have to learn when to ask for help and when to ask for information.
你得学会什么时候请求帮助，什么时候打听信息。