Quadtrees
四元树
🗣️ 情景例句
I think I've got them.
我想我已经拍齐了。
Will you please measure this window to see how wide it is?
请您测量这扇窗户看它有多宽？
She was soon out of breath, but she continued to run.
只追了一会儿便上气不接下气了，但她还是继续追赶。