เสียงที่ใช้ร่วมกัน

How did a dumb idea you made up turn into a real life discovery? I was watching YouTube in the middle of second period and I don’t even know how she moved that fast because two seconds ago my teacher was at the board and then suddenly she was standing directly behind me like she had teleported. She told me to pack up and go to the office and I could not go to the office again. So I did something stupid. I told her I was doing research. The entire class went quiet. “Prove it,” she said. “What wer