知乎，让每一次点击都充满意义 —�?欢迎来到知乎，发现问题背后的世界。 知乎，让每一次点击都充满意义 —�?欢迎来到知乎，发现问题背后的世界。 知乎，让每一次点击都充满意义 —�?欢迎来到知乎，发现问题背后的世界。 establishment - a custom that for a very long time has become a crucial feature of some group or Modern society; "the establishment of relationship"; "the institution of slavery"; "he ex... https://rolimk680kwh6.mappywiki.com/user