它的影子显示了太阳的运动。
他们研究了太阳的运动,还关注了其他自然变化,如气温、水和植物生长。
They studied the sun's movement and also paid attention to other natural changes such as air temperature, water and plant growth.
也就是说,它们补偿可以太阳的运动。
In other words, they were able to compensate for the Sun's movement.
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