Without expression trees, its impossible to describe expressions in a descriptive format; the only description of them is IL, which is too low level to re-create the user's intent for the expression.
Engelsing was trying to describe something he saw in the 18th century: a shift from "intensive" reading and re-reading of very few texts to "extensive" reading of many, often only once.
19世纪，恩格尔辛发现人们在由精读、反复阅读少量书籍向泛读——通常只读一遍——更多的文章转变。
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I use the same phone game structure I will describe for RE-GAMING over the phone.