DICT.TW Dictionary Taiwan

 gru·el·ling /ˈgruəlɪŋ/
 嚴罰;嚴懲

 gruelling
      adj : characterized by toilsome 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, backbreaking, grueling, hard, heavy,
             laborious, punishing, toilsome]