apply applies to a often followed procedure or pattern in conducting things to do: It is his observe to confirm all statements.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。Instance: After i jou