Friend at work today met with a term called the set sales, the literal translation means is set sales, but this set of sales in the end I do not know what a large group of people sit together and study a long time did not work out why and wherefore.in order to not affect the work we read all kinds of information, would like to get an answer in the data, but each word has more minutes to explain, coupled with my English was weak, a group of people is not even a few good school English,led up to now not clear the meaning of the word, now that I think I had to seriously study the English language is so nice.