加拿大和欧洲因为一些不寻常的现象和未解的谜团而受到了大量媒体甚至研究的关注。
Canada, and Europe have received a great deal of media and even research attention over unusual phenomena and unsolved mysteries.
虽然现在科学家对于如此二分化的地形有些可能可以解释的理论，但它仍然是个未解的谜团。
Although scientists now have some theories that could explain this dichotomy of terrain, it remains an unsolved puzzle.
在华盛顿之外，同样有一些至今未解的历史谜团。
Beyond Washington, there are historical mysteries that still resonate.
在华盛顿之外，同样有一些至今未解的历史谜团。
Beyond Washington, there are historical mysteries that still resonate.
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