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。 b : prolonged-set up follow regarded as unwritten law c : recurring follow Custom will make all points simple. institution - a custom that for a very long time has been a very important feature of some team or society; "the establishment of marriage"; "... https://paulineb063fwu9.wikiitemization.com/user