365bet中国官方网站

  • word of the day

    beauty quark

    beauty quark - 365bet中国官方网站 definition and meaning for word beauty quark

    Definition
    (noun) a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
    Synonyms : bottom quark

  • Word used in video below:
    text: the beauty spot gone the mountain beauty
    Download our Mobile App Today