英语中1到20的数字依次为：one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty. 当表达21到99之间的整数时，除了特殊形式的twenty, thirty, forty, fifty, eighty之外，sixty, seventy, ninety都是与个位数形式结合后加上后缀”-ty”构成。表示几十几时，需在几十和个位数之间加上连字符”-“.
