青云翻译

The biggest drawback is that our classroom is the lack of teacher and student exchanges, exchanges between students and students.

Biggest disadvantage is that we are missing from the classroom teacher and student exchanges, exchanges between students and student.

The biggest shortcoming is our classroom lacks teacher and student's exchange, between the student and student's exchange.

The big disadvantage is that we lack of classroom teachers and students, between students and the exchange of communication between students.

Biggest disadvantage is that we are missing from the classroom teacher and student exchanges, exchanges between students and student.