載入中... 相關課程 Back 【例題】四分之二個披薩和二分之一個披薩一樣多 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. 【例題】四分之二個披薩和二分之一個披薩一樣多 上傳學習單 下載學習單