K-density
[计] k稠密性
🧩 词语组成解析
🗣️ 情景例句
Daddy, can we go soon?
爸爸 ，我们能快点走吗？
What track does the Metroliner leave from?
华纽特快从第几轨道开出？
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，