Quadtrees
四元树
🗣️ 情景例句
You're a ... wonderful friend.
你是个……极好的朋友。
When poverty comes in at the door,love flies out of the window.
贫穷一进门，爱情跳窗走。
As I was looking for it, the landlord came in.
当我正在寻找时，酒店老板走了进来。