| 单词 | reciprocal |
| 释义 | adjective | noun reciprocalreciprocal1 /rɪˈsɪprəkəl/ ●○○ adjective formal a reciprocal arrangement or relationship is one in which two people or groups do or give similar things to each other: Iran’s leaders expected a reciprocal gesture of goodwill.—reciprocally /-kli/ adverb adjective | noun reciprocalreciprocal2 noun [countable] math a multiplicative inverse. For example, the reciprocal of 5/3 is 3/5. The product of a number and its reciprocal is 1. [Origin: 1500–1600 Latin reciprocus returning the same way, from re- back + pro- forward] |
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