英文含义
DREN的全称：Direcção Regional de Educação do Norte (Portuguese: Regional Directorate of Education of the North) | 中文意思：───北Direcção区域Educação(葡萄牙语：北方教育的区域局)
DREN的全称：Direction Régionale de l'Education Nationale (French: Regional Directorate of National Education; various locations) | 中文意思：───方向Régionale de l'教育国家(法语：区域国家教育总局；不同地点)
DREN的全称：Defense Research and Engineering Network | 中文意思：───国防研究与工程网络
DREN的全称：Durham Region Employment Network (Ontario, Canada) | 中文意思：───杜汉郡就业网络(加拿大安大略省)