1. 把5L水桶裝滿倒進3L中,剩2L。557Please respect copyright.PENANAn0I4RnvwDg
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。557Please respect copyright.PENANAAh4haq5ZsD
3. 再從5L水桶倒出1L到3L水桶,就OK了。557Please respect copyright.PENANAGwzo6EBSm1
1. 把5L水桶裝滿倒進3L中,剩2L。557Please respect copyright.PENANAn0I4RnvwDg
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。557Please respect copyright.PENANAAh4haq5ZsD
3. 再從5L水桶倒出1L到3L水桶,就OK了。557Please respect copyright.PENANAGwzo6EBSm1