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So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and wouldnot be so tasty.
到目前為止，沒有人知道火星上是否有足夠的水和氧氣供人類生存。而且，科學家也不確定植物是否能在火星上生長。食物很大可能會以藥片的形式存在，而且味道沒那么可口。
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. Peoplewould have to wear boots that are specially designed to prevent themselves from floating off into space.
重力可能會是另一個問題。火星上的重力大約只有地球上的八分之三。人們可能得穿上特殊設計的靴子，防止自己漂浮到太空中去。
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. Theymight live in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
與地球上的生活相比，火星上的生活在有些方面要好些。人們會有更多的空間。他們可能住在房間又大又舒適的房子里。而且機器人會幫他們做大部分的工作，這樣他們就有更多時間來放松。
There would probably be no schools on Mars. Every student would have a computer at home connected to an interplanetary network. They would study at online schools with "e-teachers".
火星上可能沒有學校。每個學生家里都有一臺電腦與星際網絡連接。他們可以跟電子教師一起在網上學校學習。
Life on Mars would be interesting as well as challenging.
火星上的生活，不僅有挑戰性，還很有趣。
