Mars

The atmosphere of Mars could not support life .

生命无法在火星的大气环境下生存。

Mars takes longer to revolve on its axis than the earth .

火星自转一周的时间比地球长。

Mars was the Roman god of war .

马尔斯是古罗马战神。

Mars and Earth have orbits which change with time

火星与地球的运行轨道随着时间而变化。

Mars was visible , dead in the centre of the telescope

可以看得见火星，就在望远镜的正中央。

Is there life on Mars ?

火星上有生物吗？

The planet Mars will be visible to the naked eye all week

整周都可以用肉眼观察到火星。

He stole a Mars bar from the school tuck shop .

他从学校小吃店偷了一条玛氏巧克力棒。

Mars has an insubstantial atmosphere , consisting almost entirely of carbon dioxide

火星的大气层极其稀薄，几乎全部由二氧化碳构成。

In thirty years from now the United States should have a manned spacecraft on Mars .

未来30年内，美国有可能会把载人航天器送上火星。

Mars is too faint and too low in the sky to be observable .

火星星光暗淡，位置低悬，难以看见。

The similarities between Mars and Earth were enough to keep alive hopes of some form of Martian life .

火星和地球之间的诸多相似处足以让人们对火星上存在某种生物抱以希望。

The tiny rocket is attached to the spacecraft and is designed to propel it toward Mars .

小火箭捆绑在宇宙飞船上，用于推动飞船飞向火星。

Does life exist on Mars ?

火星上有生命吗？

We hope the space rocket will land safely on mars .

我们希望宇宙火箭能安全在火星着陆。

Mars has two small moons .

火星有两个小卫星。

Asteroid lies between Mars and jupiter .

小行星位于火星与木星之间。

NASA plans for most of its future Earth-escaping payloads ( to the moon and Mars especially ) to carry CubeSats .

美国国家航空航天局计划让其未来需要逃离地球引力(尤其是去往月球和火星)的大多数飞行器携带立方体卫星。

The focus on fitness is as much about science and the future as it is about keeping any individual 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 .

对健康的关注不仅关乎科学和未来,也关乎任何一位宇航员能否返回,更重要的是,如何在往返火星所需的两年半或更长时间内保持体力和健康。

To find out , scientists need to know if Mars ever had water .

为了找到答案,科学家需要知道火星是否有水。

Today they are still not sure if there was life on the mars .

今天他们仍然不确定火星上是否有生命。

Was there life on Mars ?

火星上有生命吗?

The planet Mars is the closest and most similar planet to Earth .

火星是离地球最近且与它最相似的行星。

For example , Mars has seasons with different weather , but other planets have the same temperatures all year round .

例如,火星有不同天气的季节,但其他行星全年的温度相同。

As of now we don 't know much about Mars .

目前我们对火星还知之甚少。

It is expected to land on Mars in May or June .

“天问一号”计划于2021年5月至6月间择机实施火星着陆。

He contended that there must be life on Mars .

他坚信火星上面一定有生物。

The chances of life surviving on the surface of Mars today are slim .

火星表面现在存在生命的可能性很小。

China 's Mars probe Tianwen-1 is designed to complete orbiting , landing and roving this year .

2021年的其他任务还包括：今年，火星探测器天问一号计划实施中国首次火星“绕、落、巡”探测。

Instead , they would go into around Mars , rendezvousing with one of its moons .

作为代替，他们可以绕火星环行，与其一个卫星相遇