I think we can probably agree that it is hotter in summer than in winter, but why? And finally, would you be able to -- and you can sort of scribble it, if you like -- scribble a plan diagram of the solar system, showing the shape of the planets' orbits?
大家应该都同意夏天比冬天还热 但为何如此？最后，你能不能 简单的勾勒出 太阳系的平面图... 呈现出行星轨道运行的形状