The Sun, Moon, and the planets formed from a huge spinning gas cloud that collapsed into a gyrating disc.

太阳、月亮和这些星球形成于倒塌进一个旋转盘状物的一团巨大旋转汽云。

《柯林斯英汉双解大词典》

An eclipse happens when the earth and moon are in line with the sun.

地球和月亮与太阳处在一条直线上，日食就发生了。

《牛津词典》

The sun shines by day, and the moon shines by night.

太阳在白天光芒万丈，月亮在夜晚明亮；

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Astronomers use the observatory to study the positions and movements of the Earth, sun,moon and other objects in space.

VOA: special.2009.09.21

Tide: periodic rising and falling of large bodies of water resulting from the gravitational attraction of the moon and sun acting on the rotating earth.

UNESCO: L O S S A R Y

The phases of the moon occur due to cycles among the moon, the earth and the sun.

FORBES: Expect Two Recessions Before End Of Decade

Without it, we might still fancy the Earth situated in the center of the cosmos, with the sun, the moon and all the stars orbiting around us.

FORBES: No. 17: The Telescope