| 词汇 | permutation |
| 释义 | permutation noun uk/ˌpɜː.mjuːˈteɪ.ʃən/ us/ˌpɝː.mjuːˈteɪ.ʃən/ (DIFFERENT WAY/FORM) [ C usually plural ] formal（数学的）排列，置换 any of the various ways in which a set of things can be ordered There are 120 permutations of the numbers 1, 2, 3, 4 and 5: for example, 1, 3, 2, 4, 5 or 5, 1, 4, 2, 3. 数字1、2、3、4、5有120种排列方式，如1、3、2、4、5和5、1、4、2、3。 He made 16 separate applications for tickets using various permutations of his children's names. 使用自己孩子名字的各种形式，他分别16次申请票证。 [ C ]（几种中的）一种 one of several different forms The company has had five different names in its various permutations over the last few years. 在过去几年里，该公司用不同形式使用过5个不同的名字。 |
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