井邊有容量5公升跟3公升的兩個水桶,680Please respect copyright.PENANASHtC3qF9XU
該如何利用這兩個水桶,裝出剛好4公升的水呢?680Please respect copyright.PENANAGKjZfX02PZ
680Please respect copyright.PENANAtwNOJ4WN1q
井邊有容量5公升跟3公升的兩個水桶,680Please respect copyright.PENANASHtC3qF9XU
8964 copyright protection676PENANAf2wYpnBPU0 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?680Please respect copyright.PENANAGKjZfX02PZ
8964 copyright protection676PENANAZb862EFMz8 維尼
680Please respect copyright.PENANAtwNOJ4WN1q
8964 copyright protection676PENANADfdU2TeH0d 維尼
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