井邊有容量5公升跟3公升的兩個水桶,655Please respect copyright.PENANATkXrJ9qIXz
該如何利用這兩個水桶,裝出剛好4公升的水呢?655Please respect copyright.PENANALljRMQRZuI
655Please respect copyright.PENANAH2EA6Nz3sz
井邊有容量5公升跟3公升的兩個水桶,655Please respect copyright.PENANATkXrJ9qIXz
8964 copyright protection651PENANA5XUnLjVEuj 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?655Please respect copyright.PENANALljRMQRZuI
8964 copyright protection651PENANAiz6pfrpNnV 維尼
655Please respect copyright.PENANAH2EA6Nz3sz
8964 copyright protection651PENANA0nErqPGLWf 維尼
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