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1·The nonattendance is over one third of the semester.

学期中请假逾三分之一者；

2·A published agenda, rigorously followed, is the easiest way to make nonattendance safe.

有一份公开的议程，并严格执行，这是最简单的办法。

3·Today's board meeting is over now. Excuse me for my nonattendance for succeeding party tonight.

今天董事会已经结束了，晚上的庆功宴恕我就不列席了。