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1. 把5L水桶裝滿倒進3L中,剩2L。508Please respect copyright.PENANAHrZpchLtXJ
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。508Please respect copyright.PENANA5HbWvvQZuA
3. 再從5L水桶倒出1L到3L水桶,就OK了。508Please respect copyright.PENANA5oYKpNcSRN
1. 把5L水桶裝滿倒進3L中,剩2L。508Please respect copyright.PENANAHrZpchLtXJ
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。508Please respect copyright.PENANA5HbWvvQZuA
3. 再從5L水桶倒出1L到3L水桶,就OK了。508Please respect copyright.PENANA5oYKpNcSRN