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English to English adjective
| 1 |
Requiring labor, perseverance, or sacrifices; toilsome; tiresome. | source: webster1913 adjective satellite
| 2 |
characterized by effort to the point of exhaustion; especially physical effort |
• worked their arduous way up the mining valley
• a grueling campaign
• hard labor
• heavy work
• heavy going
• spent many laborious hours on the project
• set a punishing pace
source: wordnet30
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