The software uses artificial intelligence tograde student essays and short written answers, freeing professors for other tasks.
该软件使用人工智能来给学生的论文和简答题打分，从而将教授们解放出来以开展其他工作。
2
Most teachers at that time thought this new letter grading system was an easy, fair and clear way tograde students.
当时的大多数教师认为这种新的字母评分制度是一种用来给学生打分的简单、公平、明确的方式。
3
The system then uses a variety of machine-learning techniques to train itself to be able tograde any number of essays or answers automatically and almost instantly.