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 apply or utilization so steadily related to someone or group as to own almost the pressure of unwritten regulation. syn: custom, behavior, observe necessarily mean a longtime technique for carrying out things. custom, placed on a Group or to somebody, implies a kind of everlasting https://tayloru780mzi7.wikikarts.com/user