美国担心中国月球探测器「玉兔」轧了阿姆斯特朗的脚印，会出现这种情况吗？如何保护人类在月球上的历史遗迹？I just reread your dilemma and realized I wasted my time crafting these responses, because you are only thinking about the commercial situation. Just about anything that is not free is simply not f