What's it about?lt's about(?)

What's it about?lt's about(?)
What's it about?lt's about(?)

What's it about?lt's about(?)
翻译：它是关于什么的呢?
它是关于.
例如：1,这个故事是关于什么的?What's it about?
它是关于福尔摩斯的.lt's about Sherlock Holmes.
2,What's the story about?
lt's about an accident.
3.What's the TV show about?
lt's about a beautiful woman Helen.
4,What's the talking about?
lt's about the exam.
5,What's the meeting about?
lt's about the picnic.

关于什么的，有什么内容
如：I've see a movie.我看了一部电影。
what's it about ?讲了些什么？