無料ダウンロード 10000英文 343439-10000英文怎么说
突破英文词汇 磁带 孔夫子旧书网 One thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001 One billion can also be written as b or bn In standard form, it is written as 1 × 10 9The metric prefix giga indicates 1,000,000,000 times the base unit Its symbol is G One billion years may be called an eon in astronomy orAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How works Test new features Press Copyright Contact us Creators 10000英文怎么说