載入中... 相關課程 Back 高三上物理2-2振動與週期波(8):縱波的週期波 登入觀看 ⇐ Use this menu to view and help create subtitles for this video in many different languages. You'll probably want to hide YouTube's captions if using these subtitles. 高三上物理2-2振動與週期波(8):縱波的週期波 上傳學習單 下載學習單