英语词汇“亿光年”的释义、用法及例句翻译-英汉例句词典

词汇	亿光年
例句	The telescope is so powerful that it can show up galaxies billions of light years away.这架望远镜性能强大，可以使人看见数十亿光年外的星系。
随便看	roughened rougher roughest rough estimate rough going rough handling rough-hewed rough-hewn rough-housing roughhousing rough in roughing rough it rough justice rough landing roughly roughneck roughness rough out rough part rough passage rough plan rough play rough road roughs

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