复活节有不少传统习惯，最典型的要数复活节彩蛋。兔子也是复活节的象征。

There are many Easter traditions and customs. The most typical is Easter eggs. Rabbit is also a symbol of Easter.

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我们让第一个月的兔子数是1对,第n个月的兔子对数,是第n-1个月的兔子对数。

And then the number of pairs at month n is the number of pairs at month n - 1 plus the number of pairs at month n - 2.

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And then the number of pairs at month n is the number of pairs at month n - 1 plus the number of pairs at month n - 2.

我们让第一个月的兔子数是1对,第n个月的兔子对数,是第n-1个月的兔子对数。

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