DICT.TW Dictionary Taiwan

 back·break·ing /-ˌbrekɪŋ/
 (a.)非常辛勞的

 backbreaking
      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, grueling, gruelling, hard, heavy,
             laborious, punishing, toilsome]