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。 relates to a practice or utilization so steadily affiliated with a person or group as to acquire almost 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 heritage #fly #hoist #aspects of a flag #areas of a pennant #pennant #pennant... https://rogerk416blu4.digitollblog.com/profile