| 词汇 | mutualism | 
| 释义 | mutualism  noun [ U ]  biology specialized uk/ˈmjuː.tʃu.əlɪ.zəm/ us/ˈmjuː.tʃu.əlɪ.zəm/  互助主义 a relationship between two organisms in which they live together and benefit each other | 
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