杭州交通信息网无线通信书籍:请对移民火星提几个观点
来源：百度文库 编辑：杭州交通信息网 时间：2024/07/05 18:12:31
用英语,持反对观点.
简洁
简洁
For my part, I reckon it as an dangerous case and of course, even impossible. A simple reason is that there is no way to conquer the problem of gravity which is vital for living conditons.