十七后面加st 还是TH?
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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
1st=first2nd=second3rd=third4th,5th,6th,7th,8th,9th就是第4到9的意思.读死的音啦
1st2nd3rd4th...10th11th12th.(11到19都是加th,因为英语是-teen"th"..21st(20之后所有1,2,3,分别是st,nd,rd.其他所有都是th)22nd23
以1结尾的数字加st,如:1st,11st…以2结尾的数字加nd,如:2nd,12nd…以3结尾的数字加rd,如:3rd,13rd…其他的加th
123特殊first1stsecond2ndthird3rdfourth4thfive5th.
twenty-first简为21st
1st2nd3rd其他都加th如4th5th6th
加st,31stthirty-first同样有thirty-second32ndthirty-third33rd
11th吧...eleventh而不是ten-first
d=third后两个字母nd=second后两个字母st=first后两个字母th是其它序数词后两个字母
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?
是英语中的序数词onefirst1sttwosecond2ndthreethird3rdfourfourth4thfivefifth5thsixsixth6thsevenseventh7theight
以th结尾的单词是加s啊,如month月份,2个月不就是monthsdeath复数是deaths,不都是加了s除非特殊的,如tooth就变成teeth了啊!再有特例就是cloth,其实cloth和cl
21st第二十一;twenty-first;序数词21二十一;twentyone;数词
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.
第二ndsecond第二十二ndtwenty-second第一stfirst第二十一sttwenty-first第三十一stthirty-first看见规律了吧!很高兴为你解答!请及时采纳哦!多谢你的
13是加th因为13是Thirteen所以加th但如果是23或者33等等就要加RD因为23是twentythree可以看做是2个词,因为并没有23的单词都是用twentythree表达所以这时候就变成
1指的是first,所以应是后者.