The students have great difficulty with this type of sentence. 学生们对这种类型的句子感到困难。
As a course administrator, you can look back and see any areas that caused difficulty and reassign those areas for additional training. 作为一门课程的管理者，你可以回顾和查看任何使学生感到困难的地方，并在另外的培训中，重新布置这些内容。
