这听上去可能很合理，但是历史证明“只买美国货”的限制规定会增加成本，减小这个经济刺激计划的效果。

That might sound reasonable, but history has shown that Buy American provisions can raise the cost and diminish the effect of a spending package.

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牙买加成为奥运历史上第一个包揽女子100米金、银、铜牌的国家。

Jamaica became the first nation in Olympic history to sweep the gold, silver and bronze MEDALS in the women's 100.

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