"Song of Looking Back" When the Chinese teacher turned around, the Yellow Crane Tower was empty. The math teacher turned around and saw the axis of symmetry of the quadratic function. The English teacher turned around and added three grams of oil, sorry. When the chemistry teacher turned around, the carbon dioxide turned into gas and oil. When the physics teacher turned around, Archimedes was about to jump off the building. When the biology teacher turned around, the test-tube baby swam in the water. When the physical education teacher turned around, Jordan switched to table tennis. When the political teacher turned around, the whole class was sleepwalking. The music teacher turned around and shook his head to the beat. When the history teacher turned around, Qin Shihuang came to play, and when the art teacher turned around, Mona Lisa also became romantic. When the geography teacher turned around, there was a mudslide in front of the school gate.

When all the teachers turn around, all the students have no freedom!