เสียงที่ใช้ร่วมกัน

My teacher accidentally sent our entire class a message… that was never meant for us. And when I replied… everything got weird. So yesterday our class group chat suddenly got a message from our teacher. At first it looked normal. But then everyone noticed something strange. The message didn’t say “class.” It said “Meeting confirmed. Same plan as last time.” Now everyone’s confused. Because… what meeting? So one kid jokingly replied, “Uh… wrong chat?” And the teacher immediately delete