He also figured out the planet goes faster when it’s at perihelion, nearer the sun, than when it’s at aphelion, its furthest distance. Which would explain why summer seems to zip by, （except the seasons are a function of the tilt of the earth’s axis, not its different distances from the sun.）括号里的是不理解的，前面是背景，翻译的好的会再给分
还有这句 And the earth rotated 365 and（ a quarter times ）during its sweep around the sun 括号里的意思不能理解
