asleep at the switch;be derelict of duty;flop at a job; neglect one’s duties;neglect (/direliction) of duty ❍ 如果将来清查起来，岂止是“～”的一般罪名而已？(罗广斌、杨益言《红岩》250)When the authorities began to investigate later it would not be a simple charge of dereliction of duty；…/～的，送交宪兵队！ (杨佩瑾《剑》 13) If anyone neglects his duties he will be sent to the military police!
玩忽职守
dereliction of duty;malpractice;misconduct in office;neglect of one's official duties
玩忽职守wán hū zhí shǒu
玩忽：轻视、不严肃对待。形容对自己的工作不认真，不严肃，不负责任。neglect of duty, flop at a job, dereliction of duty, asleep at the switch, fall asleep, breach of duty