operose
- adj.费力的;刻苦的;困难的
operose
adj
-
1
- 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
- Synonym: arduous backbreaking grueling gruelling hard heavy laborious punishing toilsome
数据来源:WordNet