井邊有容量5公升跟3公升的兩個水桶,717Please respect copyright.PENANAWI4BQaxmY2
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717Please respect copyright.PENANAjsfDHDLwqw
井邊有容量5公升跟3公升的兩個水桶,717Please respect copyright.PENANAWI4BQaxmY2
8964 copyright protection713PENANAsmgl6g1yDp 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?717Please respect copyright.PENANAbI3QMiHxfj
8964 copyright protection713PENANAXd3vjl8RQy 維尼
717Please respect copyright.PENANAjsfDHDLwqw
8964 copyright protection713PENANA9iXtPdtXXe 維尼
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ns216.73.216.22da2在主頁加入 Penana 以更方便離線閱讀:按 然後按「加至主畫面」