The earth makes 1 circles one day , one night rotates semicycle , rotates 365 24 hours of circles , a day for 1 year. One 12 hours of night
地球一天转1圈,一夜转半圈,一年转365圈,一天24小时.一夜12小时 用英语怎么说
The earth makes 1 circles one day , one night rotates semicycle , rotates 365 24 hours of circles , a day for 1 year. One 12 hours of night