四十年前，一位美国的心理学家沃尔特·米歇尔，完成了一项著名的实验。
FORTY years ago Walter Mischel, an American psychologist, conducted a famous experiment.
五年之前他与同济大学的马教授合作，用了四十公斤废铁屑做了一个小试（小规模实验）证明这个方法有效果。
Using 40kg of scrap iron, they ran a prototype experiment which showed that the method worked. Then the full-scale treatment facility came into operation.
这个实验结果大概能印证我的一位四十中旬的单身男性朋友对在纽约市约会的看法。
That result might explain what a single, mid-40s male friend of mine says about dating in New York City.
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