求翻译：如今它是很常见的现象，一些大学生晚或即使没有从类。仍有一些学生他溜出教室上课之前是在。课堂出勤率已成为学生和教师的棘手问题。是什么意思？

Today it is a very common phenomenon, some university students late or even in the absence from class. There are still some students that he slipped out of the classroom before. Classroom attendance has become a thorny issue for students and teachers.

Today it is a very common phenomenon, and a number of university students later or even if not from the class. There are still a number of students he slipped away before it is out in classrooms. classroom attendance has become a student and teacher of pain.

正在翻译，请等待...

正在翻译，请等待...

正在翻译，请等待...