井邊有容量5公升跟3公升的兩個水桶,737Please respect copyright.PENANAYKiciE15Sl
該如何利用這兩個水桶,裝出剛好4公升的水呢?737Please respect copyright.PENANAImEC4f7i8P
737Please respect copyright.PENANAWoMJQhPIvp
井邊有容量5公升跟3公升的兩個水桶,737Please respect copyright.PENANAYKiciE15Sl
8964 copyright protection733PENANABz5LHA3gwH 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?737Please respect copyright.PENANAImEC4f7i8P
8964 copyright protection733PENANAqhX99fm9eF 維尼
737Please respect copyright.PENANAWoMJQhPIvp
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