这种理论与之前认为的对称性是健康有力的标志的理论相矛盾。
This contradicts previous beliefs that symmetry is a mark of fitness and strength.
之所以有这样矛盾的观点，这是因为“标尺”和“时钟”——它们标志着事件所在的时间和空间，它们对于不同的观察者来说是不一样的。
These contradictory versions arise because rulers and clocks—the things that mark time and space—are not the same for different observers.
自相矛盾的关于四号核反应堆贮存核燃料的冷却池剩余水量的的信息是这次核危机究竟带来多大危险这个谜题的标志。
The conflicting information about the water levels in the pool storing the spent fuel rods in Reactor 4 is emblematic of the confusion the nuclear crisis has engendered.
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