| 单词 | operoseness |
| 释义 | operoseness (once / 2954828 pages) n WORD FAMILY operose: operosely, operoseness n the quality of requiring extended effort Syn|Hyper laboriousness, toilsomeness effortfulness the quality of requiring deliberate effort |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。