Changing an offline course to an online course is a contract change. The contract change must be agreed by both parties, and educational institutions have no right to unilaterally change it into online courses. But the outbreak of the epidemic is force majeure, which neither educational institutions nor students can foresee, avoid and overcome.

Under normal circumstances, the epidemic will not last long. If Gao Dun resumes normal teaching and fulfills its contractual obligations after the epidemic, there will be no compensation.