在许多情况下,无论多少广告,无论广告多么巧妙或有说服力,都不能阻止人们改变他们的爱好。另一方面,广 告本身也常常是顾客改变某种决定的原因。
【正确答案】：In many instances no amount of advertising, however clever or persuasive ，can keep people from making such changes. On the other hand，advertising itself is often the cause of the customers decision to change products.
