載入中... 相關課程 Back service: 服務, serve, 服務, servant, 僕人, server, 伺服器 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. service: 服務, serve, 服務, servant, 僕人, server, 伺服器 上傳學習單 下載學習單