Many scientists hold the theory that supposes the existence of life in outer space.
很多科学家持有假定在外部空间还有生命存在的理论。
But he also had other interests - including the search for life in outer space.
但他还有其他兴趣，包括寻找外太空的生命。
But he also had other interests - including the search for life in outer space.
但他还有其他兴趣，包括寻找外太空的生命。
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