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If everyone in the United States were balanced on a map, a trucker crossing Steelville's Main Street would once have straddled the center of gravity.
如果美国的每个人都能在地图上保持平衡的话，那么这个正在穿越斯蒂尔·维尔大街的卡车司机一度跨立在地心引力的中心。
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