classes:  lecturer. hope the school upgraded the old machines in the practice machine room so that our students have enough machines to study.  curriculum. hope the school upgraded the old machines in the practice machine room so that our students have enough machines to study.  facility. hope the school upgraded the old machines in the practice machine room so that our students have enough machines to study.  general. hope the school upgraded the old machines in the practice machine room so that our students have enough machines to study.