When you turn the light off at night， the room becomes very dark. When you light a candle in the dark room， it seems very bright. But if you turn on the light and put the candle beside the lamp， the candle will look dim¹. This is the same with the sun and the stars. The sunlight² during the day is very strong so the star light appears very weak. That is why we can't see stars during the day.

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