求翻译：当然，近年来全国出现的各起群体性事件，反映出我们在处理这些事件时种种的缺陷与不足，各级政府都应当吸取教训，做好经验总结，努力提高应对群体性事件的能力，防止此类事件的再次发生。是什么意思？

Of course, various group events that occur throughout the country in recent years, reflected when we deal with these events to various defects and shortcomings, Government at all levels should draw lessons from experience, efforts to improve the capacity to deal with Group incidents, prevent the recurrence of such incidents.