尽管这是个很重要的材料，但我认为它的难度太大，不适合我们的学生。

While this is very important material I think it's probably pitched at too high a level for our students.

《柯林斯英汉双解大词典》

使用合适材料是重要的。

The use of the correct materials was crucial.

《柯林斯英汉双解大词典》

我已经让木匠全职工作了，不过一些重要的建筑材料被海关延误了。

I'm having my carpenters work full time, but some of the important building materials are being delayed at the customs.

youdao

This material is therefore crucial background to reading the Latter Prophets.

这些材料提供了重要的背景知识,以使我们阅读《后先知书》

耶鲁公开课 - 旧约导论课程节选

He speaks in a language of math and it is very important for students to be able to have hot copies so that they can take notes on the paper rather than be working very hard to copy down the equations that he used in these lectures.

他以数学语言授课,所以发给学生教学材料,是非常重要的,这样就可在纸上做笔记,而不用拼命,抄下他在课上,用到的等式。

麻省理工公开课 - 媒体、教育、市场课程节选

I'll cover them of course and go over what I think the key points are, but if I don't discuss the readings in class please don't take that as a sign that the readings aren't important.

我会对其进行讲解,并且指出重点部分,如果有课上没讲到的阅读材料,不要以为这些不重要

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选