| 单词 | hedonics | 
| 释义 | hedonicsnoun plural but usually singular in construction  he·don·ics   hēˈdäniks, -nēks 1   : a theory of ethics dealing with or based on the relation of duty to pleasure   2   : a branch of psychology that deals with pleasant and unpleasant states of consciousness and their relation to organic life   | 
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