absence
/ˈæbsəns; `æbsns/ n
1 ~ (from...)
(a) [U] being away 缺席; 离开; 不在某处
His repeated absence (from school) is worrying. 他一再缺课使人担忧.
It happened during/in your absence. 那是当你不在的时候发生的.
In the absence of the manager (ie While he is away) I shall be in charge. 经理不在的时候, 由我负责.
during his absence in America, ie while he was there 当他不在此地而在美国的期间.
(b) [C] occasion or time of being away 不在某处的次数或时间
numerous absences from school 无数次的缺课
throughout his long absence 在他长期不在（某处）的期间
after an absence of three months 在离开三个月之後. Cf 参看 presence.
2 [U] lack; non-existence 缺乏; 不存在
the absence of definite proof 缺乏确凿的证据.
3 (idm 习语) ,absence of `mind failure to think about what one is doing; absent-mindedness 心不在焉; 神不守舍. conspicuous by one's absence => conspicuous. leave of absence => leave2.