「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？
2005-01-18 03:10:38 · 3 個解答 · 發問者 Anonymous in 藝術與人文 ➔ 詩詞與文學
為何這裡用「21th」
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
學術研討會緊鑼密鼓籌備中竇俠與林秀三分獲傑出學人獎. 將於八月二十一日在聖路易西郡 ...
2005-01-18 03:36:33 · update #1
而，這裡又用「21st」呢？
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. ...
2005-01-18 03:36:40 · update #2
這個東西叫做"序數",當形容詞(adj)時前面加the,當副詞(adv)時不加
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...
2005-01-18 03:36:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
當然是21th啊.......要看最後面那個數字.......22nd,23rd,24nd,25nd....
2005-01-18 03:20:46 · answer #2 · answered by R&B Thug 7 · 0⤊ 0⤋
21 寫成 21st. 22 為 22nd, 23 = 23rd, 24 = 24th, 30.... 一樣的道理,不再多寫了
2005-01-18 03:17:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋