突然，小鸭子有了一条大大的、漂亮的孔雀尾巴。
Suddenly, the little duckling has a big, nice peacock's tail.
内尔森博士和迈耶尔什博士推测，答案应该与尾巴最漂亮的孔雀获得配偶的道理一样。
The answer, Dr Nelissen and Dr Meijers suspect, is the same as why the peacock with the best tail gets all the girls.
孔雀炫耀其漂亮的尾羽。
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