substantive|substantives

经过几周的讨论，他们终于取得了实质性进展。

After weeks of discussion, they finally made ___substantive progress.

在这个句子中，'学生'和'老师'都是名词。

In this sentence, 'student' and 'teacher' are both ___substantives.

法庭将重点讨论案件的实质性问题，而不是程序细节。

The court will focus on the ___substantive issues of the case, not the procedural details.