Back 【解題】用迴紋針為單位比較彩色筆和原子筆的長短 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】用迴紋針為單位比較彩色筆和原子筆的長短 上傳學習單 下載學習單