dereliction of duty

基本解释

He was degraded from office for his dereliction of duty.
他因渎职而受到降级处分。
He was reduced to ordinary soldier due to a serious dereliction of duty.
他因严重失职被降为普通士兵。
In case any one of the above-mentioned persons conduct graft or serious dereliction of duty, they may be dismissed at any time upon the decision of the board.
以上人员如有营私舞弊或严重失职行为的，不能胜任工作的，经董事会决定可随时撤换。

Randy Stone, a Marine legal officer who has been charged with dereliction of duty for not ordering an investigation.
NPR: Marine General Testifies at Haditha Hearing
But she was found guilty of dereliction of duty on seven of the nine acts that were part of the charge.
NPR: Harman Convicted for Role in Abu Ghraib Abuse
His lawyer, Samuel Spitzberg, says the charges will include dereliction of duty, conduct unbecoming to an officer and lying to investigators.
NPR: Two Years After Abu Ghraib, Abuse Reports Linger

Dereliction of duty is deliberate or accidental failure to do what you should do as part of your job.

渎职罪
The fourth part is the essence of the subject of the crime of dereliction of duty.
第四部分是关于渎职罪主体的本质特征。
玩忽职守
疏忽职守