1. Discuss the effectiveness of using celebrities in advertisements. 2. You can mention the potential benefits such as increased attention and trust, and possible drawbacks like overshadowing the product or high costs.

1. 讨论在广告中使用名人的有效性。 2. 您可以提到潜在的好处，比如增加关注和信任，以及可能的缺点，比如盖过产品或成本高昂。