Looking at a number of sources gives you a good knowledge base, but students only have a limited amount of time to work on each paper.

阅读大量的文献可以打下坚实的知识基础，但是学生们完成每篇论文的时间非常有限。

youdao

The girl is said to have had only limited knowledge of computers.

据说这个女孩的计算机知识很有限。

youdao

We must attach importance to after-class What we have learnt in class is very limited, because only knowledge in textbooks can be acquired.

我们必须重视课外学习，我们在课堂上学到的东西是非常有限的，因为只有在教科书可以获得知识。

youdao