That of, of all of the in-school factors that exist, the teacher quality is the factor that has the most impact on student achievement levels.

那就是，在所有存在的校内因素中，教师质量是对学生成绩水平影响最大的因素。

Here's another example. That of, of all of the in-school factors that exist, the teacher quality is the factor that  has the most impact on student achievement levels.

这是另一个例子。也就是说，在所有存在的校内因素中，教师素质是对学生成绩水平影响最大的因素。

The court said that it was the school's responsibility to provide each student with the same books, teachers, and classrooms (well, not exactly the same teachers and classrooms, but equivalent – equal in quality – teachers and classrooms).

法院表示，学校有责任为每个学生提供相同的书籍、教师和教室（好吧，不是完全相同的教师和教室，而是同等的——质量相同的——教师和教室）。