Results of experiments with three birds were published online Thursday by the journal Current Biology.
用三只鸟得到的实验结果在周四被当代生物期刊在线发表。
Think about this: Five birds are resting on the fence and minutes later, three birds decide to fly off to search for food.
请思考这个问题：五只鸟在篱笆上休息，几分种后，三只决定飞走去寻找食物。
Over in the corner three birds looked at us mournfully.
角落里那三只鸟儿忧伤的看着我们。
Over in the corner three birds looked at us mournfully.
角落里那三只鸟儿忧伤的看着我们。
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