1. absence without leave
   擅离职守,开小差
   
2. leave of absence
   假期,休假
   

1. He puzzled over her absence.
   他苦苦思索她缺席的原因。
2. This does not justify his long absence.
   这不能说明他长期缺席是对的。
3. An absence or cessation of motion;stillness.
   静止运动的消失或停止;静止
4. He returned a ruined man after five years' absence.
   他离开5年后穷极潦倒回来。
5. His absence of mind caused him to forget his Briefcase.
   他的心不在焉让他忘了他的皮箱。

　4个名词解释