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
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
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
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
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
Bacteria are an annoying problem for astronauts.
2019年高考英语全国卷2 阅读理解 阅读D 原文
For instance, astronauts lose bone mass.
2015年高考英语湖北卷 阅读理解 阅读D 原文
Nasa is worried about two things: recovery time once astronauts return home, and, more importantly, how to maintain strength and fitness for the two and a half years or more that it would take to make a round-trip to mars.
2015年高考英语湖北卷 阅读理解 阅读D 原文
One of the nasa's major concerns about astronauts is how they can remain healthy for long in space.
2015年高考英语湖北卷 阅读理解 阅读D 题设
Some astronauts feel sick on the station during the first few days because their brains receive contradictory messages.
2015年高考英语湖北卷 阅读理解 阅读D 题设
The astronauts will suffer from a carbon-dioxide headache when they exercise in one place for a long time.
2015年高考英语湖北卷 阅读理解 阅读D 题设
The exercise bike for the American astronauts has no handlebars.
2015年高考英语湖北卷 阅读理解 阅读D 原文
The microorganisms from our bodies grow uncontrollably on surfaces of the international space station, so astronauts spend hours cleaning them up each week.
2019年高考英语全国卷2 阅读理解 阅读D 原文
You can end up with what astronauts call a carbon-dioxide headache.
2015年高考英语湖北卷 阅读理解 阅读D 原文