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单词 Byr
释义

Byr

听听怎么读
是什么意思
  • abbr.

    billion years 十亿年;

  • 英英释义

    Byr

    • The abbreviation byr means "billion years"(109 or 1,000,000,000 years). A closely related abbreviation is bya "billion years ago".

    以上来源于:Wikipedia

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