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1. The lunar corona is a fascinating phenomenon that occurs when the moon passes in front of the sun.
月晕是一种迷人的现象，当月亮在太阳前面时会发生。
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2. Astronomers have long been fascinated by the lunar corona, which can reveal important information aboutthe moon's atmosphere and composition.
天文学家长期以来一直对月晕充满好奇，它能够揭示月球大气和组成的重要信息。
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3. During the total solar eclipse, the lunar corona can be seen as a bright band of light stretching across the sky.
在日全食期间，可以看见月晕作为一条明亮的光带横跨天空。