ordinal
柯林斯词典
1. ADJ denoting a certain position in a sequence of numbers 序数的
2. N ordinal number的缩写→short for ordinal number
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ordinal /ˈɔːdɪnəl/
剑桥词典
- a number such as 1st, 2nd, 3rd, 4th, that shows the position of something in a list of things
序数词
Fifth and 200th are ordinal numbers . 第五（Fifth）和第二百（200th）都是序数词。
比较
cardinal noun (NUMBER) 返回 ordinal