Advertisement fills every facet of our life. For instance, when you walk on the street, you can encounter a few people who are sending out leaflets. And billboards 廣告牌show up on both sides of the aisle. When you surf the Internet, your mailbox must be glutted with充斥 chaotic 混亂的mailshots廣告郵件. When you sit around to watch TV in the evening, the prime time黃金時間 of advertising is coming. Advertising campaign廣告宣傳 is everywhere. Advertising agency endorses宣傳,；吹噓 its products in every possible way. The unisex advertising art is monotonous 單調(diào)的無變化的in content but various in form. But there is no doubt that advertising occupies a great market share市場份額.