英文形容数字每3位为一个单位
从左到右分别为
thousand 1,000
million 1,000,000
billion 1,000,000,000
trillion 1,000,000,000,000
则1,331,460,000=one billion,three hundred and thirty one million,four hundred and sixty thousand.
如果要表示货币金额总数：
则为“SAY TOTAL+货币单位+数字”
比如总额1,331,460,000美金
则可用SAY TOTAL USD ONE BILLION THREE HUNDRED AND THIRTY ONE MILLION FOUR HUNDRED AND SIXTY THOUSAND
