Such courses, Hacker argues, are a remedy for the numerical illiteracy of adults who have completed high-level math like algebra but are unable to calculate the price of, say, a carpet by area.
2018年12月六级真题(第二套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
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文盲
Illiteracy is the state of not knowing how to read or write.