1. 把5L水桶裝滿倒進3L中,剩2L。656Please respect copyright.PENANAa4EO7cRPoS
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。656Please respect copyright.PENANAATOJXsSTXl
3. 再從5L水桶倒出1L到3L水桶,就OK了。656Please respect copyright.PENANAWW0AOfFOQw
1. 把5L水桶裝滿倒進3L中,剩2L。656Please respect copyright.PENANAa4EO7cRPoS
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。656Please respect copyright.PENANAATOJXsSTXl
3. 再從5L水桶倒出1L到3L水桶,就OK了。656Please respect copyright.PENANAWW0AOfFOQw