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没有哪一个参考系相对于其它参考系是特殊的.
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“For a sailor, home again, prison again.”
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“For a sailor, home again, prison again.”
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没有哪一个参考系相对于其它参考系是特殊的.
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“For a sailor, home again, prison again.”
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“For a sailor, home again, prison again.”
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