井邊有容量5公升跟3公升的兩個水桶,718Please respect copyright.PENANArTFKTkhNcR
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井邊有容量5公升跟3公升的兩個水桶,718Please respect copyright.PENANArTFKTkhNcR
8964 copyright protection714PENANAxENe0VjUrL 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?718Please respect copyright.PENANAZaycDKVVFZ
8964 copyright protection714PENANAhYACvnuMZW 維尼
718Please respect copyright.PENANAlkOuzDBNm0
8964 copyright protection714PENANADHw4IMNyHz 維尼
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