first,1st second,2nd 数字后的st/nd什么意思first,1st second,2nd third,3rdforth,4th fifth,5th每个数字后的st/nd/rd/th等是什么意思?是什么的缩写?

first,1st second,2nd 数字后的st/nd什么意思first,1st second,2nd third,3rdforth,4th fifth,5th每个数字后的st/nd/rd/th等是什么意思?是什么的缩写? first 1st second 2nd twenty-first 21st one hundred and first 101st 为什么它们的结尾不是“什么th”? 为什么一号的英文是1st啊?2nd是英文second,3rd是因为third.那st是因为哪个单词啊? 1st Draft 2nd draft... 请大家帮我翻译下这句话 不要机器的 谢谢For the 2nd painting, on a second thought, since it's the first time I place order with your company, it might be better to order it after I find the 1st one to be of good quality. 1st 2nd 3rd怎么读? 英文中第几层1st是不是要上标啊?英文中第几层1st中的“st”是不是要上标啊?还有2nd中的“nd”是不是也要上标啊? 在英语On October 1st中,1st表示什么?还有2nd,3nd的意思是什么?它们又该怎么读呢? 第二第三在英语中怎么简写?first and second在英语中写成1st?还是什么? 1:May first.May the first.2:May the second与May second 的区别是什么? First Boot Device中各个选项是什么意思选项中包括Removable Dey、Hard Drive、CD/DVD、Network:Broadcom PXE这四项,请问1st boot、2nd boot、3rd boot、4th boot分别选哪项? My birthday is Jun.2nd.（用May.1st来改为选择疑问句） 完整缩写形式Dec. 1st【 】 Oct. 2nd【 】Sept. 3rd【 】 Aug.4th 【 第一1st,第二2nd,第三3rd,那么第四之后呢 55 St.Clair Avenue East,2nd Floor Toronto ON M4T 1M2 英语翻译SHAFT,1ST & REVERSE SHIFT LEVER,1ST & REVERSE SHIFT RAIL,1ST & REVERSE SHIFT JAW,1ST & REVERSE SHIFT JAW,1ST & REVERSE SHIFT RAIL RAIL,1ST & REVERSE SHIFT FORK.1ST & REVERSE GEARSHIFT 2ND & 3RD SHIFT RAIL ASSY FORK,2ND & 3RD GEARSHIFT JAW 求此程序结果!#include int first;int second;void callee ( int first ){int second;second = 1;first = 2;printf(callee:first = %d second = %d ,first,second);}int main (int argc,char *argv[]){first = 1;second = 2;callee(first);printf(caller:firs 英语2009年3月2日写作：2nd March,2009,其中2后面的“nd”是什么意思?还有什么“1st”“3rd”!