神马作文网31日是31th还是31st
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/18 03:15:00
第一first1st第二second2nd第三third3rd第四fourth4th第五fifth5th第六sixth6th第七seventh7th第八eighth8th第九ninth9th第十ten
Dec.11thDec.12thDec.21st,因为是twentyfirst
twenty-first简为21st
22ndtwentysecond25thtwentyfifth26thtwentysixth28thtwentyeighth30ththirtieth31stthirtyfirst前面的都是后面的缩写
加st,31stthirty-first同样有thirty-second32ndthirty-third33rd
11th吧...eleventh而不是ten-first
25th-Twenty-fifth26th-Twenty-sixth28th-Twenty-eighth30th-Thirtieth31st-Thirty-first
thirty-firstninetiethtwenty-secondfourty-third
两者都可以,但是读法不同21th=twentyoneth21st=twentyfirst
没有的啦,都是按序数词的规律来加的,基本的规律是：1st,2nd,3rd,其余的才加th,遇到y,把y变成i,加th,遇到有f,把f改成ve加th.你是不是弄错了?
EI/上海将于1月25日到31日关闭.FCL时间表:装箱发货.假日中仍有船只.时间表如下.1.船公司:CSCL每星期四.T/T(transittime)运程时间:25天.文件呈交于之前的星期五截止.货
21st第二十一；twenty-first；序数词21二十一；twentyone；数词
31st,除了11号以外所有的1号都是st祝楼主更上一层楼
,31stthirty-first,取最后两个字母st
21号是21st21=20+120就不变了,变后边的122号是22nd同上再问：1st2nd3rd4th-10th11th-20th21st22nd23rd24th-30th31st您帮看下对么再答：
是用31st只要后面是1就放st,最后是2就放nd,最后是3就放rd,最后是4,5,6,7,8,9,0就放th.
1指的是first,所以应是后者.
22ndtwenty-second31stthirty-fist43rdforty-third55thfifty-fifth101stonehundredandfirst80theightieth
任何数字的序数,尾数是1、2、3的(除了尾数是11/12/13外）都参照first(-st),second(-nd)和thrid(-rd)来表述,其余都是-th例如：11->11th12->12th1