句子成分求解 ... unwilling to have their names entered as having taken out such and such a book

完整句子：Many firms ,have great difficulty in obtaining books because they are unwilling to have their names entered as having taken out such and such a book . 来自新概念4第15课，请问各路大神such and such a book是什么意思，第一个such是指代前文所提及的实验研究，还是such and such a book 一起翻译为这本和那本书？

“such and such book”
这些或这些书

呵呵，原因很简单，as是介词，后面接动词词组，理所当然动词需要加ing形式。 补充： 你说的有点欠缺，他们是不同的用法，介词之后动词要加ing形式是一种规定；应该说成：完成式本身是表示该动作发生在谓语的动作之前；而不是动名词本身，因为动名词是因为有as之后才有的。二者并不矛盾。