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\\\"
造句
用作形容詞(adj.)
The President has a punishing schedule for the next six months. 總統今后六個月的工作日程十分繁忙。