The auctioneers are violating a code of practice by dealing in stolen goods.
这些拍卖商买卖赃物的做法,正违反行规。
《柯林斯英汉双解大词典》
2
By listening to a bad example and a good example of service practice, we'll be studying skills that are useful in any industry, no matter whether you are dealing with internal or external customers.