1. 把5L水桶裝滿倒進3L中,剩2L。649Please respect copyright.PENANAZJBHzUr0qL
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。649Please respect copyright.PENANA6ElZTztfh6
3. 再從5L水桶倒出1L到3L水桶,就OK了。649Please respect copyright.PENANAsulH9xOQGM
1. 把5L水桶裝滿倒進3L中,剩2L。649Please respect copyright.PENANAZJBHzUr0qL
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。649Please respect copyright.PENANA6ElZTztfh6
3. 再從5L水桶倒出1L到3L水桶,就OK了。649Please respect copyright.PENANAsulH9xOQGM