Communicate with the training class first, hoping to take measures as soon as possible and pay the "interference fee" as scheduled before the measures are realized. If the discussion is inappropriate, you can report it to the property or call the police. However, if you do this, you will be torn apart and will not be able to live in harmony in the future. If the war can't be solved, you can also bother yourself, install a high-power stereo, and start the training class with rock and roll. You must be bored to death, bored to death, bored to death. ...