Don't cast out the foul water till you bring in the clean. (或 Don't throw out your dirty water before you get in fresh.)
释义
Don't cast out the foul water till you bring in the clean. (或 Don't throw out your dirty water before you get in fresh.) 〈谚〉清水未得,莫泼脏水。(或:好东西未到手,不要抛弃坏东西。)