精品文档 缩写 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 基数词 序数词 first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sixteenth 基数词 seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty- seven twenty- eight twenty- nine thirty thirty- one 序数词 seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth thirty-first 缩写 one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen 基数词 one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen 精品文档 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 序数词 first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth 缩写 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 基数词 seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty- seven twenty- eight twenty- nine thirty thirty- one 序数词 seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth thirty-first 缩写 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 精品文档 sixteen sixteenth 16th 精品文档 本文来源：https://www.wddqw.com/doc/d6f9ff16aa114431b90d6c85ec3a87c241288a53.html