| 单词 | permutation |
| 释义 | permutation n. 1. a an ordered arrangement or grouping of a set of numbers, items, etc. b any one of the range of possible groupings. 2. any combination or selection of a specified number of things from a larger group, esp. Brit. matches in a football pool. Derivatives permutational adj. Etymology: ME f. OF or f. L permutatio (as PERMUTE) |
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