x
No Plagiarism!y5ekhGDAzsifGEANO7ocposted on PENANA
井邊有容量5公升跟3公升的兩個水桶,586Please respect copyright.PENANAhbMCzRmjWD
8964 copyright protection582PENANAMS5VaozRv1 維尼
該如何利用這兩個水桶,裝出剛好4公升的水呢?586Please respect copyright.PENANAB6drbwcKlS
8964 copyright protection582PENANAI4j30E3WXs 維尼
586Please respect copyright.PENANAs031JyPKPJ
8964 copyright protection582PENANANye6FQjBoc 維尼
15.158.61.8
ns 15.158.61.8da2