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1·We shall first discuss a more mundane version of the twin paradox.

我们将先讨论孪生佯谬的一个比较通俗的形式。

2·Twin paradox is an old topic in the theory of relativity without a satisfactory explanation in relevant literatures.

双生子佯谬是相对论中一个古老的问题，但是，许多文献对它都未给出满意的说明。

3·This theory is the basis of a famous thought experiment known as the twin paradox, in which a twin sibling who travels on a fast-moving rocket ship would return home younger than the other twin.

这个理论基础来自于著名试验猜想，双胞胎悖论：乘坐高速火箭飞船旅行的双胞胎哥哥（或弟弟），回到家后要比他的弟弟（或哥哥）年轻。