| 单词 | laborious |
| 释义 | Word Frequency laborious(ləˈbɔːrɪəs) adjective 1. involving great exertion or long effort 2. given to working hard 3. (of literary style, etc) not fluent Derived forms laboriously (laˈboriously) adverb laboriousness (laˈboriousness) noun |
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