商业广告则是其中有人为推销产品或服务支付。
A commercial advertisement is one which someone has paid for to promote a product or service.
作为自由职业者，赛尔辛格按天收费，她的收入主要来自平面广告和电视商业广告，来自刊物和购物手册的收入最少。她说她的服务价格与平面造型师相当。
As a freelancer she is paid a day rate, earning most for print advertising and television commercials and least for editorial and catalogue work.
商业广告是一种人们为了推销某商品或服务而花钱做的广告。
A commercial advertisement is one which someone has paid for to promote a product or service.
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