这是一桩偶发的事件.It was quite an accident.事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。It became very clear that the incident was not just an aberration, it was not just a single incident.大型陨石的撞击则可能偶发的使大气密度及温度增加.Large meteor impacts may have o...
He was not a prepossessing sight.他长相不怎么样。Clean clothes and good manners are prepossessing.清洁的衣服和良好的举止能给人以好感.He / His appearance is not at all prepossessing.他[他的外表]毫无吸引力....