井邊有容量5公升跟3公升的兩個水桶,652Please respect copyright.PENANAzrHOwz7C95
該如何利用這兩個水桶,裝出剛好4公升的水呢?652Please respect copyright.PENANA7fOPmkKGbC
652Please respect copyright.PENANAMdNOgBlWuS
井邊有容量5公升跟3公升的兩個水桶,652Please respect copyright.PENANAzrHOwz7C95
8964 copyright protection648PENANADghWzNJK1D 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?652Please respect copyright.PENANA7fOPmkKGbC
8964 copyright protection648PENANAArqqM4PKTn 維尼
652Please respect copyright.PENANAMdNOgBlWuS
8964 copyright protection648PENANAm55V5ntyUy 維尼
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