Back 【解題】比較不同大小的水杯裝相同高度的水 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】比較不同大小的水杯裝相同高度的水 上傳學習單 下載學習單