1st是什么意思,st是一个单词来的吗？怎么读啊？

1st是什么意思,st是一个单词来的吗？怎么读啊？

1st表示的是单词first，是序数词“第一”的意思。序数词是数词的一种，主要在英语语法中讲到，在汉语中表示为“第几态铅嫌”。此外，帆手在生日中，激誉描述你出生的日期时，也用到了序数词。比如：May first （5月1日）其他序数词：first (1st) second (2nd) third (3rd) fourth (4th) fifth (5th) sixth (6th) seventh (7th) eighth (8th) ninth (9th) tenth (10th) eleventh (11th) twelfth(12th) thirteenth (13th) fourteen (14th) fifteenth (15th) sixteenth (16th) seventeen (17th) eighteenth (18th) nineteenth (19th) twentieth (20th) twenty-first (21st) thirtieth (30th) thirty-ninth(39th) fortieth (40th) fiftieth (50th) sixtieth (60th) seventieth (70th) eightieth (80th) ninetieth (90th) hundredth (100th) one hundryed-first(101th)