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It also slows down more as you move faster, which means astronauts (宇航员) someday may survive so long in space that they would return to an Earth of the distant future.
出自-2011年6月听力原文
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All these clothes are similar to the space Suit designs that kept astronauts comfortable in the temperatures of the moon, and are spin-offs from space technology.
2017年12月四级真题（第二套）听力 Section C
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In early space programs, such as the Apollo missions of the 1960s and 1970s, and in the Space Shuttle missions today, scientists developed objects for the astronauts to use on the moon and in space.
2017年12月四级真题（第二套）听力 Section C
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Much of it was left by American astronauts who landed on the lunar surface between 1969 and 1972 during NASA's Apollo missions.
2018年12月四级真题（第二套）听力 Section C
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The objects left by the Appllo astronauts included the equipment that was no longer needed.
2018年12月四级真题（第二套）听力 Section C