大家好，今日小栢来为大家解答以上的问题。twentyone序数词怎么写，twentyone的序数词很多人还不知道，现在让我们一起来看看吧！

1、1到20的英语序数词1）序数词至第二十的数字为:first (1st)second (2nd)third (3rd)fourth (4th)fifth (5th)sixth (6th)snth (7th)eighth (8th)ninth (9th)tenth (10th)elnth (11th)twelfth(12th)thirth (13th)four (14th)fifth (15th)sixth (16th) sn (17th)eighth (18th)nin (19th)twenti (20th)注：英语序数词第1-19除了first、 second、 third 有特殊形式外，其余均由基数词加后缀-th 构成。

本文到这结束，希望上面文章对大家有所帮助。