載入中... 相關課程 Back valuable: 無價的, 珍貴的, invaluable, priceless, 無價的, valueless, worthless, 無價值的, 無用的 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. valuable: 無價的, 珍貴的, invaluable, priceless, 無價的, valueless, worthless, 無價值的, 無用的 上傳學習單 下載學習單