题目

英语 hundred thousand million billion
1,900读成one thousand and nine hundred 还是one thousand nine hundred.
3,400,080,200读成three billion and four hundred and eighty thousand and two hundred还是three billion four hundred eighty thousand two hundred
129,200,006,001又该怎么读?
为什么1900没and 而后面两个数字在百进千的时候加and 呢
这个and 什么时候用 什么时候不用都搞混了！

提问时间：2020-07-28

答案

1,900读成one thousand and nine hundred
3,400,080,200读成three billion four hundred eighty thousand and two hundred
129,200,006,001读成one hundred and twenty nine billion two thousand million six thousand and one