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Title: Walk, hop or run? 行、跳還是跑? Post by 鳥友A on Feb 12th, 2003, 9:18pm Both humans and birds have two legs. We can choose to walk, hop and run. Do birds have the same choices? 人和鳥都有雙腿。人類可以步行,雙腳跳或奔跑,鳥類是否也有同樣選擇? http://www.newscientist.com/lastword/article.jsp?id=lw745 |
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