当斑点和条纹四个月大的时候，他们正在学习如何开门和跳栅栏，我们知道是时候让他们离开了。
When Spot and Stripe were four months old, they were learning how to open doors and jump fences, and we knew it really was time for them to go.
叉角羚跑的快——每小时60英里（约97公里）以上——但是它们很少跳栅栏。
Pronghorn run fast—upwards of 60 miles an hour—but they rarely jump fences.
鸵鸟不愧是个头最大的鸟类，当我咋一眼仰视这只鸵鸟时，它的个头真让我吓一跳，这脖子长的足可以琢到在栅栏外的人了。
It is surprised to see the largest living species of bird. This ostrich has a long neck which is long enough to peck me who is outside the fence.
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