论文部分内容阅读
有一天动物园管理员们发现袋鼠从笼子里跑出来了,开会讨论后,一致认为是笼子的高度过低。所以它们决定将笼子的高度由原來的十公尺加高到二十公尺?峁诙
One day, the zookeepers found out that the kangaroos had run out of their cages and had discussed and agreed that the height of the cages was too low. So they decided to increase the height of the cage from the original ten meters to twenty meters.