At first, the ancient people looked up at the sun and could tell it was the middle of the day, when the sun was directly overhead in the sky.
起初,古人抬头看太阳,看到太阳正挂在头顶上的时候就知道是正午。
The hot sun is shining right overhead.
烈日当头照。
As the sun passed overhead then sank into the west it burned a bright path across the middle of the sky in this long-exposure image.
在这张长曝光片中,太阳划过头顶,渐渐西下,划出明亮的光带。
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