大家好，我是小夏，我来为大家解答以上问题。序数词的用法总结，序数词很多人还不知道，现在让我们一起来看看吧！

1、first 1st second 2nd third 3rd fourth 4th fifth 5th sixth 6th seventh 7th eighth 8th ninth 9th tenth 10th eleventh 11th twelfth 12th twentieth 20th twenty-first 21st 回答者： 1w2p3t | 一级 | 2010-10-9 20:49 first eleventh second twelfth third twentieth fourth twentieth-first。

本文到此讲解完毕了，希望对大家有帮助。