D 开头单词
department of pediatrics 儿科；小儿学科
department of ophthalmology 眼科
department of naval architecture [教育学]造船学系
department of homeland security
department of hepatobiliary surgery 肝胆外科
department of geography 地理系；地理学系；地理学
department of general surgery [医药科学]普通外科
department of foreign languages 外语系
department of engineering physics [教育学]工程物理系
department of education 教育部；教育系
department of defense network [动力与电气工程]国防部网路[计算机科学技术]国防部网路