1. Discuss the types of items that young people are often interested in replacing, such as technology gadgets, fashion items, or cars. 2. You can also explore the reasons behind these replacements, such as staying trendy, technological advancements, or environmental concerns.

1. 讨论年轻人经常有兴趣更换的物品种类，如科技小工具、时尚物品或汽车。 2. 你也可以探讨这些更换背后的原因，比如保持时尚、技术进步或环保问题。