家庭经济困难学生资助体系 system for giving students from poor families financial aid ; system for providing aid to students from poor families

易学的和难学的语言 Easy and Difficult Language

难学又乏味 difficult and boring ; difficult and dull

难学而且乏味 Difficult and boring

很难学 It is difficult to learn ; Difficult to learn ; Hard to learn

疑难学名 [生物] nomen dubium

英语不难学 Not difficult to learn English

汉语是很难学的 Chinese is hard to learn

人老难学新招 You cant teach an old dog new tricks

感到英语语法难学 English grammar difficult to learn