太空探索的好处英语作文？The advantages and disadvantages ofspace exploration Human beings have worked with the s
太空探索的好处英语作文？
The advantages and disadvantages ofspace exploration Human beings have worked with the space for decades .From the observationof stars in the sky of ancient people tothe first satellite launched into space.But there are also risks First ，the space may be polluted by human beings ，for we have sent so many satellites into the space in the course ofexploring Then，there may be another horrific truththat we may be found by aliens becauseof the satellites sent to the far space.
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