translation.en: So we now have the largest peer-grading pipeline ever devised, where tens of thousands of students are grading each other's work, and quite successfully, I have to say.
translation.zh: 因此我们现在就有设计出的最大的同龄人批改线 这当中成千上万的学生 在互相批改作业 而且我必须说,这很成功