At Northwestern University, researchers recently concluded that well before babies start to speak, they recognize words and can link them to the things they represent.

VOA: standard.2010.05.05

We're not doing well at all, they concluded.

他们如此总结，我们束手就擒。

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What he concluded was, these pigeons were trying to figure out what makes those pieces of corn come and they started to think well,they had to get the interval between corns right to make this work.

他总结出这些鸽子都在绞尽脑汁,想知道玉米从那来的,它们只能利用,那15秒的间隔去想清楚这个问题

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