載入中... 相關課程 Back 3-1例題08秒針運動的平均速率與速度 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. 3-1例題08秒針運動的平均速率與速度 上傳學習單 下載學習單