很多科学家持有假定在外部空间还有生命存在的理论。
Many scientists hold the theory that supposes the existence of life in outer space.
在外部空间，折叠梯让下层露台获得了更多空间，也让上层露台成为了特别活动空间。
On the outer spaces, a folding ladder allows the lower terrace to gain room, leaving the top terrace as a space for occasional events.
在外部空间，地球重力减弱，如果有一火箭在运行，那么它将继续运转，直到另有一物推它或拉它为止。
In outer space, where the pull of the earth's gravity is weakened, if a rocket is moving, it will continue to move until something else pushes against it or pulls it back.
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