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。 applies to a practice or utilization so steadily associated with someone or team as to possess Pretty much the power of unwritten regulation. 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。 #banner #flag #flag definition #flag background #fly #hoist #portions of a flag #aspects of a pennant #pennant ... https://richardv760mlu0.national-wiki.com/user