| 单词 | arduous |
| 释义 | arduous adj needing much effort or energy; laborious 艰巨的; 费力的 an arduous task 艰巨的任务 The work is arduous and the hours are long. 工作吃力, 时间又长. |
英汉双解词典包含38652条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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