1. 把5L水桶裝滿倒進3L中,剩2L。520Please respect copyright.PENANAiCE7XFHjly
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。520Please respect copyright.PENANAt2GCjLgMeA
3. 再從5L水桶倒出1L到3L水桶,就OK了。520Please respect copyright.PENANAVoYw8v1FhI
1. 把5L水桶裝滿倒進3L中,剩2L。520Please respect copyright.PENANAiCE7XFHjly
2. 3L水桶倒空,2L從5L水桶倒過來後,把5L再次裝滿。520Please respect copyright.PENANAt2GCjLgMeA
3. 再從5L水桶倒出1L到3L水桶,就OK了。520Please respect copyright.PENANAVoYw8v1FhI