The sun is always shining. But it can only shine on one side of the earth at a time. It cannot light up the other side of the earth at the same time.
All day the stars are in the sky,but the light from the sun is so bright that you cannot see them. When the sun is gone,the stars are bright. Big things look little when they are far away. In the sky,planets look like toys, but on the ground,you can see that they are small. Stars look very small because they are far away. The sun is closer to us than the other stars. So it looks bigger.
要汉语,准确点。我用百度翻译出来什么都看不懂,大神帮帮我