SurfaceExploration.Robotsmakegreatexplorersonplanets，mo...
问题详情：Surfacetsmakegreatexplorersonplanets，moons，andotherlandingefromearth，justabouteverysurfaceinthesolarsystemisunsafeforhumanstoaironmostotherplanetsisinsufficientforhumanstobreathe，makingitnecessary...