Kaiyuan Mediterranean Sea. Training in large institutions is expensive, but it is much more reliable than that in small institutions. Small institutions mainly play with students and international students, and constantly increase the class hours for students. There are many unqualified training institutions in Kaiyuan Mediterranean, and it seems that they are all unqualified above the third floor, let alone hiring teachers without teacher qualification certificates. There is a price to pay for being informal. Training institutions should be careful when running.