classes:  lecturer. This is a good subject, but the time is too little, the students do not use much in practice.  curriculum. This is a good subject, but the time is too little, the students do not use much in practice.  facility. This is a good subject, but the time is too little, the students do not use much in practice.  general. This is a good subject, but the time is too little, the students do not use much in practice.