The presence of water on Mars is a hot topic for scientists.
有水存在的火星对于科学家来说是一个热门的话题。
There's a new plan to send a rocket to Mars.
有个新计划要把一枚火箭发射到火星上去。
For many Americans it might as well be a meal from Mars.
对于很多美国人而言，这倒不如说是来自火星的一顿饭。
If we want a challenge, Mars is it.
如果我们需要一个挑战，火星正好。
The scientists are developing a kind of plant to grow on Mars.
科学家正在培育一种可以在火星上种植的植物。
But a new study throws cold water on that temperate Mars.
然而一项新的研究却向温和的火星泼了冷水。
火星以前是水的世界吗？
He grabbed a Mars Bar from a display cabinet on Reading station.
他在瑞丁车站的一个展示柜台上拿了一只玛氏棒。
We think the Mars is a lifeless planet.
我们认为火星是一个没有生命的星球。
The Russians plan to put a satellite into orbit round Mars.
俄国人计划把一颗人造卫星送入环绕火星的轨道。
NASA claims that Mars is a desert planet with no life at all.
美国航天局称，火星是一个沙漠星球，没有生命。
Say you want to write a book, or land on Mars.
比如你想写一本书，或者登上火星。
Mars is also a planet that has water on its surface besides the earth.
除地球以外，火星也是一个存在表层水的行星。
I'm going to play a cat from Mars.
我将扮演一个从火星来的小猫。
It was chosen as a central reference point for Mars' geographical coordinate system.
它被选为一个火星的地理坐标系统的中心参考点。
NASA envisions a crew of six astronauts for a Mars mission.
美国宇航局设想由6名宇航员执行一次火星任务。
The moon would then be a staging post to Mars.
届时，月球可成为火星的补给站。
I think that would have to be a manned mission to Mars.
我觉得肯定是载人火星任务。
But the Moon offers a great local to test out human missions to Mars.
但对于人类的火星使命来说，月球是个伟大的试验场。
Mars, like planet Earth, is a complex and vast world with a long history.
火星像地球一样，是一个具有悠久历史的复杂和广阔的天地。
This is an artist's concept of present-day Mars - a barren, cold, desert world.
这是现今火星的艺术概念图-一个贫瘠，冰冷，荒芜的世界。
Whether there is life on Mars is a mysterious and unsolved question.
火星上有没有生命是个未解开的迷。
Because the idea of a balmy ancient Mars just got iced.
因此关于温和的古代火星这个说法也被冰封了。
Do you know whether it takes a long time to travel from Earth to Mars?
你知道从地球到火星是否要花很长一段时间吗？
This is an artist's concept of water flowing through a canyon on ancient Mars.
这是远古火星上峡谷间的流水艺术概念图。
火星是行星。
In one photo, a hill on Mars' surface looked a little like a face.
在一张照片中，火星表面的一座山看上去有点像一张脸。
Today, he would make a speech at a theatre named Mars.
今天，他将在一个名为“火星”的剧院做演讲。
Mars has a North Pole and a South pole covered with white frost.
火星有冰霜覆盖着的南极和北极。
Mars has a North Pole and a South pole covered with white frost.
火星有冰霜覆盖着的南极和北极。
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