[ C or U ] a technique for behaving or carrying out a thing that has existed for a long time which is regarded as the standard way: business enterprise patronage marketplace traffic trade merchandising totally free trade affairs dealings retailing wholesaling horse-buying and selling 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。 , while some https://abbieh493zqf7.wannawiki.com/user