如何用英语读数字?

问题描述:

如何用英语读数字?
例如:123,456,789 这个数字用英语怎么读?是这样读吗:one hundred twenty three billion four hundred fifty six million seven hundred and eighty nine

one hundred and twenty three million four hundred and fifty six thousand seven hundred and eighty nine
三个数字分开,用读百位数的方法,最后加单位