2100260 = 2,100,260
two million,one hundred thousand,two hundred and sixty
1378562790 = 1,378,562,790
one billion,three hundred and seventy-eight million,five hundred and sixty-two thousand,seven hundred and ninety.
温馨提示：
第一个分节号读作：thousand；
第二个分节号读作：million；
第三个分节号读作：billion.
再问： 五米八六 怎么翻译 顺便翻译一下
再答： five meters and eight six
