井邊有容量5公升跟3公升的兩個水桶,730Please respect copyright.PENANALZAPJRn6Fc
該如何利用這兩個水桶,裝出剛好4公升的水呢?730Please respect copyright.PENANAz2dWb5nL4z
730Please respect copyright.PENANAlx4n3pr6dS
井邊有容量5公升跟3公升的兩個水桶,730Please respect copyright.PENANALZAPJRn6Fc
8964 copyright protection726PENANA7BlBzm7RDT 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?730Please respect copyright.PENANAz2dWb5nL4z
8964 copyright protection726PENANAKij5pLnCTB 維尼
730Please respect copyright.PENANAlx4n3pr6dS
8964 copyright protection726PENANAPu5pRx7BrT 維尼
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