引用sciencedirect中epr的介绍，说得很清楚： the epr effect rests on the fact that in solid tumors, the structural design of the vasculature is disorganized and abnormal (mostly. 这是一个很多人都没有弄明白的问题。 大部分时候，in fact 所在句子是对前面内容的进一步阐释（特别是用 fact 来进一步阐释），比如： mrs. Used to imply that one would expect the fact to be the opposite of that stated;
31 Days of Halloween Movies Best Halloween Movie List!! Halloween
