遥控无人机带摄像头:翻译中文！！高手进啊！！！！

Fourth, such information is becoming more politically sensitive as it points to the unevenness of quality both within and between education systems. Quality levels vary widely from one education system to another and even within a single education system there may be sharp variations in quality, e.g. between public and private schools, between urban and rural schools, between education for the majority andeducation for minorities, immigrants, the marginalized, etc. Even in the same classrooms boys and girls can have significantly different learning experiences. The unevenness of quality is a critical issue facing education systems and is particularly important in regard to the widening education gap between countries, the tasks of development and the effects of internal disparities on social cohesion.