英语单词中哪些数字单词变成序数词的时候会发生变化?

问题描述:

英语单词中哪些数字单词变成序数词的时候会发生变化?
英语单词中哪些数字单词变成几十或十几的时候会发生变化?求好人帮我一一列举!例如:four序数词fourth
十四fourteen四十forty

eighth 8thninth 9thtwelfth 12ththirteenth 13thfifteenth15theighteenth 18thtwentieth 20thtwenty-fifth25thtwenty-eighth 28thtwenty-ninth29ththirtieth30thfortieth 40thfiftieth 50theightieth 80t...