;
53用英语表达就是fifty -three,中间有一道连字符,例如,there are fifty- three students in our class,我们班有53个学生,Fifty three的序数词是Fifty third,整数的fifty不变,只把three变为相对应的序数词Third,例如WHO was the fifty three to arrive at our classroom this morning,谁是我们班今天早上到达的第53个学生
53的基数词是fifty-three,序数词是fifty-third.