Is the Grand Canyon the greatest wonder anywhere in the natural world?
大峡谷是自然界最美丽的奇观吗？
In the final episode of this series, Brian reveals the greatest wonder of them all.
布赖恩在本系列的最后情节，揭示了所有最伟大的奇迹。
The greatest wonder of all, perhaps, is that most everything here grows on nothing more substantial than sand held in place by humble fungi.
也许，这里最大的奇妙之处是几乎所有生物赖以生存的只有由卑微的真菌固定住的沙土。
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