高考问答圣母百花大教堂正门:请对移民火星提几个观点
来源：百度文库 编辑：高考问答 时间：2024/05/06 05:39:12
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.