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。

Hopefully, man will be able to land on Mars one day.

希望有一天人类能在火星上着陆。

Not only has man landed on the moon, but also man will land on Mars.

人类不仅登上了月球，而且还要登上火星。

We're going to land on Mars in 2027. And the reason is this man is determined to make that happen.

我们将要在2027年登陆火星。因为有人下决心做到这件事。

The highly advancing science and technology will make it possible for human beings to land on Mars.

日益高速发展的科学技术将会使人类登上火星成为可能。

You may land on Mars and build armed citadels, or you may look for life-forms and species to learn from and respect.

你可以登陆火星去建立军事的堡垒，或是怀着求知和尊敬去寻找新生命和物种。

Yes, you heard that right – it's possible that when the first humans land on Mars, we may do so in an inflatable donut.

是的，你没听错—可能第一个太空人上火星时，他要待在一个充气甜甜圈里。

Mister Sagan helped choose the landing area for Viking One and Viking Two, the first space vehicles to successfully land on Mars.

萨根先生还帮助海盗一号和海盗二号火星探测器选择在火星登陆的地点，这是人类火星探测器第一次成功在火星上着陆。