井邊有容量5公升跟3公升的兩個水桶,668Please respect copyright.PENANAWbQo6hKvst
該如何利用這兩個水桶,裝出剛好4公升的水呢?668Please respect copyright.PENANATERv34pNMy
668Please respect copyright.PENANAikC7sja9LK
井邊有容量5公升跟3公升的兩個水桶,668Please respect copyright.PENANAWbQo6hKvst
8964 copyright protection664PENANAU9tnL1SCys 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?668Please respect copyright.PENANATERv34pNMy
8964 copyright protection664PENANAQ0A8sp6vZM 維尼
668Please respect copyright.PENANAikC7sja9LK
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