井邊有容量5公升跟3公升的兩個水桶,704Please respect copyright.PENANA2j5KB39BgA
該如何利用這兩個水桶,裝出剛好4公升的水呢?704Please respect copyright.PENANAqTcXdEQdmA
704Please respect copyright.PENANAvI8J0a00y0
井邊有容量5公升跟3公升的兩個水桶,704Please respect copyright.PENANA2j5KB39BgA
8964 copyright protection700PENANA5FpzhKyl0Q 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?704Please respect copyright.PENANAqTcXdEQdmA
8964 copyright protection700PENANA1QJdzxzBiu 維尼
704Please respect copyright.PENANAvI8J0a00y0
8964 copyright protection700PENANAvyrS7moFrA 維尼
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