来自龚俊斌的问题
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70,80,90,的序数词英语咋写
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70,80,90,的序数词英语咋写


1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70,80,90,的序数词英语咋写
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70,80,90,的序数词英语咋写
(1)从第一至第十九其中,one—first,two—second,three—third,five—fifth,eight—eighth,nine—ninth,twelve—twelfth为特殊形式,其它的序数词都是由其相对应的基数词后面添加“th”构成.例如:six—sixth、nineteen—nineteenth.
(2)从第二十至第九十九整数第几十的形式由其对应的基数词改变结尾字母y为i,再加“eth”构成.
twenty——twentieththirty——thirtieth
表示第几十几时,用几十的基数词形式加上连字符“-”和个位序数词形式一起表示.thirty-first第三十一fifty-sixth第五十六seventy-third第七十三ninety-ninth第九十九