你即將離開本站

並前往https://www.pbslearningmedia.org/resource/phy03.sci.phys.howmove.collage/understanding-vibration-and-pitch/

Understanding Vibration and Pitch | PBS LearningMedia

Sometimes sounds are pleasant to listen to, like two voices singing in harmony or ... Have you ever wondered what sound is and how we differentiate among ...

確定！ 回上一頁

查詢 「What is sound」的人也找了：

  1. What is sound
    2.
  2. sound中文
    3.
  3. What's sound
    4.
  4. Sound wave
    5.
  5. Different sound
    6.
  6. Dr binocs what is sound
    7.
  7. Light and sound
    8.
  8. Echo sound
    9.