365bet中国官方网站

  • word of the day

    light-year

    light-year - 365bet中国官方网站 definition and meaning for word light-year

    Definition
    (noun) the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
    Synonyms : light year

  • Word used in video below:
    text: year ever peppa loves chinese new year
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