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1. 把5L水桶裝滿倒進3L中,剩2L。417Please respect copyright.PENANAP5s7gxHwrl
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。417Please respect copyright.PENANAD2UTCLXBTy
3. 再從5L水桶倒出1L到3L水桶,就OK了。417Please respect copyright.PENANAkZeH1G82gB
1. 把5L水桶裝滿倒進3L中,剩2L。417Please respect copyright.PENANAP5s7gxHwrl
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。417Please respect copyright.PENANAD2UTCLXBTy
3. 再從5L水桶倒出1L到3L水桶,就OK了。417Please respect copyright.PENANAkZeH1G82gB