載入中... 相關課程 Back sack [sæk] n. [C] 麻布(或厚紙、塑膠等)大袋 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. sack [sæk] n. [C] 麻布(或厚紙、塑膠等)大袋 上傳學習單 下載學習單