从前,有一只长颈鹿,它发誓要徒步绕地球一圈。它3岁的时候,就出发去实现自己的梦想。它走啊,走啊,遇到了一条大河,它只好绕过去。这一绕不知道绕了多远,最后长颈鹿实在走不动了,就找了片树林住了下来,最后也没能过河。如果这只长颈鹿没有被大河阻挡,真的绕地球走了一圈,那长颈鹿的哪个地方感觉最累呢? Once upon a time, there was a giraffe, which vowed to walk around the earth on a circle. When it was 3 years old, it set out to fulfill its dream. It walked, walked, encountered a river, it had to go around. This winding did not know how far around, and finally the giraffe really can not move, and found a piece of wood to live down, finally failed to cross the river. If this giraffe is not blocked by the river, really around the earth, which part of the giraffe feel the most tired?