火星上有生命吗？
The atmosphere of Mars could not support life.
生命无法在火星的大气环境下生存。
Mars and Earth have orbits which change with time.
火星和地球的轨道随着时间而发生改变。
Mars is too faint and too low in the sky to be observable.
火星太暗，在空中位置太低，所以观测不到。
But I kind of have to skip the one after Mars for now.
但我要暂时先跳过火星后面的这颗行星。
We will be able to travel to Mars and back in just three days.
我们将能在三天内往返火星。
The planet Mars is the closest and most similar planet to Earth.
火星是离地球最近、和地球最相似的行星。
You can get the real time weather reports for Mars with the iPhone.
你可以用iPhone 获得火星的实时天气报告。
Even if bacteria did arrive on Earth from Mars, they must have died out.
即使细菌真的从火星来到地球，它们也一定已经灭绝了。
Scientists who study Mars have laid down the program that they can follow.
研究火星的科学家们已经制定了他们可以遵循的计划。
Mars was the Roman god of war.
马尔斯是古罗马战神。
有生命存在火星上吗？
And a landing on Mars will follow.
紧接着就是登陆火星。
There might have been life on Mars.
火星上可能已经有生命了。
婚姻成全人，也能损害人。
Mars suffers from the opposite fault.
火星却有着相反的缺陷。
Wired: What would life on Mars be like?
连线杂志：在火星上的生活会是怎样的呢？
这个疤痕有损于他的容貌。
这是老子的火星时间。
How far is it from the earth to the Mars?
从地球到火星有多远？
Plans were big, first the moon, then Mars.
规模宏大的计划，首先登月，然后是火星。
Before and after Mars reigns by good luck.
火星统治前后的好运。
I think Mars without life is a great place.
我觉得，没有生命的火星是一个好地方，非常有趣。
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。
And how is it known that Mars had hafnium-187?
那么是如何知道火星有铪- 187的呢？
Not only do you have Mars' help, but also Venus.
你不仅会有火星的帮忙，还有金星。
不行，汤姆少爷。
Scientists assume there is no animal life on Mars.
科学家们假定火星上没有生命存在。
Scientists assume there is no animal life on Mars.
科学家们假定火星上没有生命存在。
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