Education, with its cycles of instruction so carefully worked out, punctuated by textbooks----those purchasable wells of wisdom----what would civilization be like without its benefits?

Education 是解释后面的it

with its cycles of instruction so carefully worked out, punctuated by textbooks----those purchasable wells of wisdom---- 是补充修饰 education,后置定语



【 在 zuohan 的大作中提到: 】
: 单元句（单部句）与独立主格的区别在于：是否为一个独立的句子？
: 单元句（单部句）是一个独立的句子。
: 独立主格是一个从属的从句，在主句中，独立主格通常充当状语。
: ...................
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