1. You can compare the parks you see today with the ones you remember from your childhood. 2. Think about differences in facilities, size, cleanliness, safety, or even the types of activities available. 3. You can also mention changes in technology, design, or how people use parks nowadays.

1. 你可以将今天看到的公园与童年记忆中的公园进行比较。 2. 考虑一下设施、面积、清洁度、安全性，甚至可进行的活动类型方面的差异。 3. 你还可以提到技术、设计的变化，或者人们如今如何使用公园。