Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.
西欧人也已经发明并且使用了磁罗盘,当云彩同时遮住了太阳和星星时,它就能起作用。
Fusion is the energy source of the sun and the stars.
核聚变是太阳和恒星的能量来源。
The ancients understood the Earth, the movement of the Sun and the stars, so much more than you do now.
古代人理解地球,知道太阳与星星的运行规律,他们比你们今天知道的更多。
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