載入中... 相關課程 Back U1 單字講解第 1~12 相關課程 0 / 750 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. U1 單字講解第 1~12 上傳學習單 下載學習單