New types are expected to be added over time and some types expired.

需要随时间的推移添加新的类型，而某些类型则被淘汰。

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If the event does occur before the defined time has expired, then normal execution continues.

如果事件在指定时间过期之前发生，则继续进行正常执行。

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While the queue is unbound in size, enabling adds to return immediately, one cannot take an element from the queue until the delay time has expired.

因为队列的大小没有界限，使得添加可以立即返回，但是在延迟时间过去之前，不能从队列中取出元素。

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Wigan coach Brian Noble's three-year part-time contract expired at the end of last year and the Rugby Football League wants a full-time replacement.

BBC: McRae coached in the first nine seasons of Super League

Wade then stole the ball from George near midcourt with about 3 seconds left, took a couple dribbles and hit a 12-footer over Hibbert's outstretched arm as time expired, giving Miami a 56-46 lead at the break.

NPR: Heat Win 18th Straight, Roll Past Pacers 105-91

Michigan was leading Wisconsin 60-57 on Saturday when Ben Brust got a perfect inbounds pass from Mike Bruesewitz, took one dribble across halfcourt and connected for the tying 3-pointer as time expired in regulation.

NPR: College Basketball Gets Crazier By The Week