搜搜考试网1st.2nd.21st.31st.3rd.22nd.23rd的原形是
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first第一second第二third第三fourth第四fifth第五sixth第六seventh第七eighth第八ninth第九tenth第十eleventh第十一twelfth第十二thir
1st就是first的简写,2nd是second的简写,3rd是third的简写,4th是forth的简写.以此类推,都是表示序数的意思.
December(the)first或thefirstofDecemberOctober(the)second或thesecondofOctoberSeptember(the)third或thethi
IsyourbirthdayJun2ndorMay1st?
没有.JANE已经开始从1月21日到2月2日休假.
第31届奥林匹克运动会
firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwelfththirteenthfourteenthfifteenths
mostcommonis'oneandahalf'.somemaysay'oneandonehalf'.Whenyouusewordslikefirst,second,third,fourth,fif
fromthefirstyeartothethirdyearinthefirstandsecondyears
first1stsecond2ndthird3rdfourth4thfifth5thsixth6thseventh7theighth8thninth9thtenth10theleventh11thtw
1)205twohundredandfive(2)4,789fourthousandsevenhundredandeighty-nine(3)10,001tenthousandandone(4)1,5
fifth,twelveth,second,first,ninth,third,eighth,seventh
这些是简写形式由序数词来的first1stsecond2ndthird3rdfourth4th从3以后就是加th了就是阿拉伯数字,取后两个字母表示序数,就可以和数字区分开来
这是固定用法啦.1结尾的就是st,2结尾的就是nd,3结尾的是rd,11th,12th,13th除外；其他都是th结尾.
11-eleveneleventh12-twelvetwelfth13-thirteenthirteenth21-twenty-onetwenty-first22-twenty-twotwenty-s
firstsecondthird看到单词还不会读的话就去查查词典吧再问：我没说清楚，我知道是读firstsecondthird而在onJuly1st/2nd/3rd，1988中应读作onJulyfir
英语上数词分为两大类：基数词和序数词.序数词是指表示顺序的数词.口诀是：基变序,有规律,词尾加上-th. 一,二,三,特殊记,词尾字母t,d,d. 八去t,九除e,ve要用f替,ty将y变成i,t
4th5th6th7th8th9th10th11st12nd13rd.21st22nd23rd
St.是Saint的缩写,表示圣...St.Louisn.圣路易斯(美国城市)
22ndtwenty-second31stthirty-fist43rdforty-third55thfifty-fifth101stonehundredandfirst80theightieth