Or maybe the reward of a half-sized portion could be a half-sized dessert to be claimed only on a future date.

或者，选择半份套餐的奖励可能是半份甜点，且只有在未来的某一天才能享用。

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They found that the majority of both kids and adults opted for a half-sized portion when combined with a prize.

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。

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