Xiaonei
n. 校内网（网站名）
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
What is the total circulation of this newspaper.
这家报纸总发行量多少？
Never mind. So now you know what you should do.
不要紧。好了，现在你知道该怎么做了吧。