載入中... 相關課程 Back Zaitsev's Rule 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. Zaitsev's Rule : Zaitsev's Rule for E2 and E1 reactions 上傳學習單 下載學習單