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"your willingness after these six arduous days to remain here"adjectivetaxing to the utmost; testing powers of endurance
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"worked their arduous way up the mining valley"adjectivecharacterized by effort to the point of exhaustion; especially physical effort
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"the arduous work of preparing a dictionary"adjectivedifficult to accomplish; demanding considerable mental effort and skill
Explanation of arduous
We don`t have explanations for this word yet.