The pace 宇宙
The earth move round the un,and the moon move round the earth.When our part of the earth turn to the un,it i day. When our part of the earth turn away from the un,it i night.
The un i bigger than the moon.But ometime the moon look bigger than the un,becaue it i much nearer to the earth.
The un i very bright.It give very h2 light.The moon look quite bright,too,but it doen't give any light at all.The light from the moon come from the un.
The moon look much bigger and brighter than the other tar.But in fact many tar are much bigger and brighter than the moon.They look maller than the moon becaue they are farther away from the earth.
地球绕着太阳转，月亮绕着地球转。当我们这边的地球转向太阳，就是白天。当我们这部分地球远离太阳，就是黑夜。
太阳比月亮大。但有时月亮看起来比太阳大，因为它离地球近得多。
太阳很亮。它发出很强的光。月亮也看起来很明亮，但它不会产生任何光。月亮的光来自太阳。
月亮看起来比其他的星星更大更亮。但事实上许多星星比月亮大得多亮。它们看上去比月亮小是因为它们离地球很远。