dec是几月(dec是几月份的缩写)不看后悔
月份缩写:January 一月 Jan.February 二月 Feb.March 三月 Mar.April 四月 Apr.May 五月 May
月份缩写:January 一月 Jan.February 二月 Feb.March 三月 Mar.April 四月 Apr.May 五月 MayJune 六月 Jun.July 七月 Jul.August 八月 Aug.
September 九月 Sept.Octorber 十月 Oct.November 十一月 Nov.December 十二月 Dec.日期的缩写表示法:1st,2nd,3rd,4th,5th,6th,7th,8th,9th,10th,
11th,12th,13th,14th,15th,16th,17th,18th,19th,20th21st,22nd,23rd,24th,25th,26th,27th,28th,29th,30th星期的缩写:
Monday,星期一,Mon.Tuesday,星期二,Tue.Wednesday,星期三,Wed.Thursday,星期四,Thurs/Thur.Friday,星期五,Fri.Saturday,星期六,Sat.
Sunday,星期日,Sun.表示数目的词称为基数词其形式如下:A.从1-10one,two,three,four,five,six,seven,eight,nine,ten.B.从11-20eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen.。
C.从20-99整数几十中除twenty,thirty,forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成表示几十几时,在几十和个位基数词形式之间添加连字符“-”。
例:21,twenty-oneD.百位数个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and例:101,a hundred and one; 320, three hundred and twenty; 648,six hundred and forty-eight.。
E.千位数以上从数字的右端向左端数起,每三位数加一个逗号“,”从右开始,第一个“,”前的数字后添加thousand,第二个“,”前面的数字后添加million,第三个“,”前的数字后添加billion然后一节一节分别表示,两个逗号之间最大的数为百位数形式。
例:2,648 - two thousand six hundred and forty-eight;16,250,064 - sixteen million two hundred and fifty thousand sixty-four;
5,237,166,234 - five billion, tow hundred and thirty-seven million, one hundred and sixty-six thousand,two hundred,and thirty-four.
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