Anonymous

英文順位中簡寫的問題

「第一」簡寫為 1『st』；「第二」簡寫為 2『nd』；「第三」簡寫為 3『rd』；「第四」之後簡寫為 oo『th』；那「第二十一」該簡寫為21『nd』還是21『th』呢？

Update:

MCASTA 2004 - 21th Annual Conference

Louis Chinese community. Issue: 727 Date: 07/29/2004. MCASTA 2004 - 21th Annual

Conference August 21. 2004 Doubletree Hotel, St Louis, Missouri

Update 2:

21st Century Problem Solving21st Century problem solving provides sound problem solving concepts and examples that apply to grade school through graduate school and beyond in all subjects that use mathematics for problem solving. ...

Rating
• Anonymous

第一的英文是first,所以簡稱1st

第二是second

第三是third

第四到第二十的字尾都是th,所以都加th

第二十一的英文是twenty-first,所以是21st

以下是序數的英文

1st first 2nd second 3rd. third 4th fourth 5th fifth

6th sixth 7th seventh 8th eighth 9th ninth 10th tenth

11th eleventh 12th twelfth 13th thirteenth 14th fourteenth 15th fifteenth

16th sixteenth 17th seventeenth 18th eighteenth 19th nineteenth 20th twentieth

21st twenty-first 22nd twenty-second 23rd twenty-third ......

30th thirtieth 40th fortieth 50th fiftieth 60th sixtieth

70th seventieth 80th eightieth 90th ninetieth

100th one hundredth

101st one hundred and first .......

500th five hundredth

1000th one thousandth

2005-01-18 16:54:00 補充：

序數指的是"第幾"

你補充的第一個是"日期"

用法不一樣...