英语语法分析

Most similar to Facebook is Mixi, started in 2004.

与Facebook最相似的是2004成立的Mixi。

In her five years on Mixi, she has never uploaded a photo of herself.

在她使用Mixi的五年里，从来没有上传过自己的照片。

But most people on Mixi do not know her real name, nor have they seen what she looks like.

但Mixi上的大多数人都不知道她的真实姓名，更没见过她的样子。