教室失格 3D 교실실격 3D

Every class in school has its own class motto. 　　Cheol-gyu, a school physics teacher, asks his 　　students with physics-associated equations but 　　shoots immediately if a student cannot answer. 　　The last student remaining was No.7 student, 　　who keeps on giving correct answers to Cheolgyu’s 　　questions. Then, the No.7 asks back to him 　　but he couldn’t find the right answer. Spotting 　　Cheol-g...