oversight/ˈəʊvəsaɪt/
n.疏忽，忽略The oversight is not imputable to the person on the night shift.这个疏忽不能怪值夜班的人。
Even an oversight in the design might issue in heavy losses.设计中那怕是一点点疏忽也可能造成重大的损失。
By an oversight, I forgot to post your letter.我偶尔疏忽忘了把你的信寄出去。