N-density
[计] N稠密性
🧩 词语组成解析
🗣️ 情景例句
Malcolm, you worked on the Spaceport project?
Malcolm，你曾负责 太空港 的案子？
What were you doing when I called?
我打电话给你时你在干吗？
Shut the door, please.
请把门关上。