That book, whose author doesn't seem to have his own viewpoints, is full of parrot-learned knowledge.

这本书的作者并没有自己的见解，而是鹦鹉学舌般抄袭。

youdao

It is certain that had he never lived, most of what is correct in their parrot-learned knowledge would be absent.

但可以肯定他从来没有住过，大部分的什么是正确的他们只鹦鹉学的知识将缺席。

youdao