1.We never know the worth of water till the well is dry
井干方知水可贵
2.Cast not out the foul water till you bring in the clean.
清水未来,莫泼赃水.
3.A single flower does not make a spring.
一花独放不是春,百花齐放春满园.
不行了,找了很久书本都没有了,不好意思罗,知识有限