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. 討論年輕人常常有興趣更換的物品類型，例如科技小工具、時尚物品或汽車。 2. 你也可以探討這些更換背後的原因，例如追求時尚、科技進步或對環境的關注。