作业帮1st序数词的完整形式
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December(the)first或thefirstofDecemberOctober(the)second或thesecondofOctoberSeptember(the)third或thethi
thirtyfirstninetiethtwentysecondfourtythird
1st19th28th11th12ththirdtwelfthtwentietheightiethtwenty-ninth
ninetieth
月份：January（Jan.)1月February(Feb.)2月March(Mar.)3月April(Apr.)4月May(may.)5月June(June)6月July（July)7月Augus
firstIhave
序数词：第1first第2second第3third第4fourth第5fifth第6sixth第7seventh第8eighth第9ninth第10tenth第11eleventh第12twelft
为你解答.101的序数词是onehundredandfirst,所以它的缩写形式是101st；111的序数词是onehundredandeleventh,所以缩写为111th；121的序数词是oneh
firstsecondthirdfourthfiftheighthnintheleventhtwelfththirteenthtwentiethTwenty-firstTwenty-secondTwe
firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwelfththirteenthfourteenthfifteenths
first）
thirty-firstninetiethtwenty-secondfourty-third
可以.1st=first=one的序数词以此类推2nd=second=two的序数词3rd=third=three的序数词
1.second 2.third 3.fourth 4.fifth 5.sixth 6.seventh
1st2nd3rd4th5th6th7th8ht9th10th11th12th13th14th15th16th17th18th19th20th21th22th23th24th25th26th27th2
1、第一类first(1st)第一second(2nd)第二third(3rd)第三（在括号里的是缩写形式,均在阿拉伯数字后面加上相应序数词的最后两个字母构成,以下各类与此相同.）这类序数词只有三个,
基变序,有规律.词尾加上th.一二三,特殊记.词尾字母tdd,八减t,九减e.F要把ve替,Ty把y变成i,记住th前有个e.
30th=thirtieth
见英语课本第9单元再问：英语书上的不全再答：好吧再答：我回答吧再答：onetwothreefourfivesixseveneightnineten再答：eleventwelvethirteenfour
第1first第2second第3third第4fourth第5fifth第6sixth第7seventh第8eighth第9ninth第10tenth第11eleventh第12twelfth第13