1. 把5L水桶裝滿倒進3L中,剩2L。608Please respect copyright.PENANAdm4o0HGDMB
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。608Please respect copyright.PENANARofK1wRoIg
3. 再從5L水桶倒出1L到3L水桶,就OK了。608Please respect copyright.PENANAOgJFvbB98V
1. 把5L水桶裝滿倒進3L中,剩2L。608Please respect copyright.PENANAdm4o0HGDMB
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。608Please respect copyright.PENANARofK1wRoIg
3. 再從5L水桶倒出1L到3L水桶,就OK了。608Please respect copyright.PENANAOgJFvbB98V