involving a lot of effort and energy, especially over a period of time 艰苦的；艰难的 Extra ExamplesTopics Working lifec2It was physically arduous work. 这是一项体力劳动。 The road back to political stability is long and arduous. 回到政治稳定的道路是漫长而艰巨的。 an arduous task/process 艰巨任务；艰难过程
Oxford Collocations DictionaryArduous is used with these nouns:- climb
- journey
- process
- …
Word Originmid 16th cent.: from Latin arduus ‘steep, difficult’ + -ous.
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- indefatigable 98
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- NEGATIVE 165
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arduous adj.
⇨ hard
arduous
Difficult to do and involving a lot of effort: difficult, hard, tough...
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