| 单词 | effectiveness |
| 例句 | effectiveness noun •we were impressed by the effectiveness of the nontoxic pesticide:success, productiveness, potency, power | benefit, advantage, value, virtue, usefulness | formal efficacy. |
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英语同义词词典收录了14896条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。