載入中... 相關課程 操作教學 電郵大放送-網路禮儀 1 第 1/2 步 (close) (手機上請以橫式操作，往右滑查看完整題目) 題目有錯嗎？ Back 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.
操作教學
