Is it necessary to exploring outer space?
是否有必要探索外层空间吗？
I think it is necessary to exploring outer space.
我认为有必要探索外层空间。
The space station is a useful instrument in exploring outer space.
空间站是探索太空的有用工具。
Scientists have accomplished great advances in exploring outer space.
科学家在探测外层空间方面取得了巨大的进展。
What could be a bigger goal than making it to the moon, exploring outer space?
还有比登月更大的目标吗？去探索外太空？
Before exploring outer space, people used to think that the earth was flat and that you could fall off the edge if you ever went that far.
在人类探索太空前，总把地球看作是平的，如果你走远了就会从边缘处落下去。
Exploring the outer space is a real challenge to mankind.
探索外层太空对人类是真正的挑战。
Exploring the outer space is to uncover the secrets and the origin of the world.
探索外层空间是为了揭开地球和世界起源的秘密。
Also, China has started the ambitious program for exploring the outer space, including completing a space station by2020.
中国还启动了雄心勃勃的太空探索计划，其实包括到2020年建成一个太空站。
Also, China has started the ambitious program for exploring the outer space, including to complete a space station by 2020.
中国还启动了雄心勃勃的太空探索计划，其实包括到2020年建成一个太空站。
Is Outer Space Worth Exploring?
太空是否值得探索？
Is Outer Space Worth Exploring?
太空是否值得探索？
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