translation.en: Now, our current explanation of seasons is that the Earth's axis is tilted like that, so each hemisphere tilts toward the sun for half the year, and away for the other half.
translation.zh: 我们现在对季节的解释 是说地球的转轴像这样倾斜着 所以每个半球在半年中倾向太阳 另外半年远离阳光