v. go away or leave
a. not being in a specified place
s. lost in thought; showing preoccupation
a. 缺席的, 不在的, 缺乏的, 漫不经心的
vt. 使缺席
1. The teacher noticed that John was absent from class today.
老师注意到约翰今天缺席了课堂。
2. She felt sad because her friend was absent at the party.
她感到难过,因为她的朋友在派对上缺席了。
3. If you are absent for more than three days, you will need a doctor's note.
如果你缺席超过三天,你需要提供医生的证明。