a system for selling a product in which someone agrees to buy an amount of it at a wholesale price (= a lower price paid by a business), and then tries to make money by selling the product at a higher price to other people, or getting other people to sell it for them

They changed the marketing plan, got rid of all the sales people and moved into network marketing. 他们改变了营销计划，解雇了所有的销售人员，转而进行网络营销。

She is successfully self-employed in a network marketing business. 她成功地在一家网络营销公司做起了个体经营。