The nonattendance is over one third of the semester.

学期中请假逾三分之一者；

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。

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。