老幺2010
例如一月一就可写成 January the first.日期用序数词表示.也可简写为jan,1st.省略方式里数字后面的字母由序数词的最后两个字母决定.例如二号second就为2nd.三号为3rd.四号开始为4th,5th...当遇到二十一.由于是twenty-first所以必须写成21st.二十二即22nd.往下类推.但必须注意的是十一号是11th,十二号是12th.因为是eleventh和twelveth.
大头妹Angelia
1st(first)，2nd(second),3rd(third),4th(forth),5th(fifth)...规律就是阿拉伯数字加上英文序数词末尾2个字母，如21st22nd...
小丫夏夏
1.first,2.second,3.third,4.forth,5.fifth,6.sixth,7.seventh,8.eighth,9.ninth,10.tenth,11.eleventh,12.twelfth,13.thirteenth,14.forteenth,15.fifteenth,16.sixteenth,17.seventeenth,18.eighteenth,19.nineteenth,20.twentieth ,21.twenty-first,22.twenty-second,23.twenty-third,24.twenty-forth,25.twenty-fifth,26.twenty-sixth,27.twenty-seventh,28.twenty-eighth,29.twenty-ninth,30.thirtieth,31.thirty-first
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