昵称 greenback, buck, green, dough, smacker, bones, dead presidents, scrillas, paper
辅币 Freq used: 1¢, 5¢, 10¢, 25¢Rarely used: 50¢, $1
银行票据 Freq used: $1, $5, $10, $20, $50, $100Rarely used: $2
使用者 United States, America, American Samoa, American Virgin Islands,