arduous

美音音标: ['ɑː(r)djuəs] arduous
英音音标: ['ɑː(r)djuəs] result.0.expl|add:"

同义
grueling gruelling hard heavy laborious toilsome punishing operose arduous backbreaking
词性
s
解释
characterized by effort to the point of exhaustion; especially physical effort
示例
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

同义
straining strenuous arduous
词性
s
解释
taxing to the utmost; testing powers of endurance
示例
his final, straining burst of speed|a strenuous task|your willingness after these six arduous days to remain here

同义
arduous
词性
s
解释
difficult to accomplish; demanding considerable mental effort and skill
示例
the arduous work of preparing a dictionary