The anomaly of the social security system is that you sometimes have more money without a job.社会保障制度下的反常现象是，失业有时反而拿钱更多。Before the earthquake some abnormality in the weather was observed.地震以前，人们观察到了一些气候反常现象。Did you notice any unusual depression or dullness of mind?你有没有觉察到抑郁、反应迟钝等反常现象？Snowing in this area is a real freak.这个地区下雪真是反常现象。