他们发现，当提供奖品时，大多数孩子和成年人都选择了一半的分量。
They found that the majority of both kids and adults opted for a half-sized portion when combined with a prize.
超过一半的美国成年人还没有结婚，研究人员发现，即使在已婚人士中，也有30%的夫妻关系非常紧张。
More than half of American adults are unmarried, and researchers have found that even among those who are married, 30% of relationships are severely strained.
一项研究招募了200名肥胖的成年人，让他们参加一项为期16周的节食计划，这项计划中一半人的早餐中添加了甜点，而另一半没有。
One study recruited 200 obese adults to take part in a 16-week-long diet, where half added dessert to their breakfast, and half didn't.
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