Back 【解題】先畫圈表示數量,再一對一對應比較烏龜和蝦子的多少 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. 【解題】先畫圈表示數量,再一對一對應比較烏龜和蝦子的多少 上傳學習單 下載學習單