把这几个数字翻译成英语！！！

twenty dollars

eight hundred and twenty dollars

one thousand eight hundred and twenty dollars

thirty one thousand eight hundred and twenty dollars

fifty thousand and forty seven dollars

20 U.S. dollars

820 U.S. dollars

1820 U.S. dollars

31,820 U.S. dollars

50,047 U.S. dollars

自己用google 在线翻译

dollor exchanges 美元
all be ok

20 us dollars
820 us dollars
1820 us dollars
31820 us dollars
50047 us dollars