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Từ điển WordNet v3.1 - WordNet Dictionary
backbreaking
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
• Syn:
arduous, grueling, gruelling, hard, heavy,
laborious, operose, punishing, toilsome
• Similar to:
effortful
• Derivationally related forms:
toilsomeness (for: toilsome), operoseness (for: operose), labor (for: laborious), laboriousness (for: laborious), heaviness (for: heavy), hardness (for: hard), arduousness (for: arduous)
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