井邊有容量5公升跟3公升的兩個水桶,853Please respect copyright.PENANASfg7qFz1Rz
該如何利用這兩個水桶,裝出剛好4公升的水呢?853Please respect copyright.PENANARZeBHR83ib
853Please respect copyright.PENANABxI5n9yjoS
井邊有容量5公升跟3公升的兩個水桶,853Please respect copyright.PENANASfg7qFz1Rz
1234 copyright protection849PENANAxtAVdcXt2x 尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?853Please respect copyright.PENANARZeBHR83ib
1234 copyright protection849PENANAcAL8vcbxV1 尼
853Please respect copyright.PENANABxI5n9yjoS
1234 copyright protection849PENANADIsOx1EBFA 尼
216.73.217.22
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