載入中... 相關課程 Back board: 登上(巴士、火車、船、飛機);寄宿, aboard 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. board: 登上(巴士、火車、船、飛機);寄宿, aboard 上傳學習單 下載學習單