08515581-n
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| 梅森-狄克森线, 宾州和马里兰州之间的州境, 宾州 和 马里兰州 之间 的 州境, 梅森 - 狄克森 线 |
| Mason-Dixon line, Mason and Dixon line, Mason and Dixon's line |
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the boundary between Maryland and Pennsylvania; symbolic dividing line between North and South before the American Civil War |