问题描述：
1.You can walk up or down these.2.You can go and see a lot of animals here.
3.You can read books in this pace,but you can't buy them.
4.You listen with these.
5.This animal stabds on two legs and junps.
3.You can read books in this pace,but you can't buy them.
4.You listen with these.
5.This animal stabds on two legs and junps.
问题解答：
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