tirelessly       
adverb uk/ˈtaɪə.ləs.li/ us/ˈtaɪr.ləs.li/
 不知疲倦地,不觉疲劳地
in an energetic and continuous way
  In Britain, Sylvia Pankhurst campaigned tirelessly for votes for women. 在英国,西尔维亚·潘克斯特不知疲倦地为女性争取投票权。 
 He worked tirelessly to earn money for the family. 他不知疲倦地工作挣钱养家。 
 See: tireless
 - More examples
 - Rescue workers tirelessly searched for survivors.
 - She is a tirelessly dedicated employee.
 - He is a journalist who has tirelessly covered the war for three years.