"fix the roof while the sun is shining" in Chinese (Simplified)
Definition
这个表达意思是在情况好的时候解决问题或做重要的事情，而不是等到出现危机时。常用来表示未雨绸缪，提前做准备。
Usage Notes (Chinese (Simplified))
在正式和非正式语境都能用。和“未雨绸缪”类似。并不限于修屋顶，泛指任何需要提前准备以防问题的情况。
Examples
We should fix the roof while the sun is shining and update the software now, not after it crashes.
我们应该**趁天晴修屋顶**，现在就更新软件，而不是等它出故障后。
My parents always say to fix the roof while the sun is shining, so I try to save money when things are good.
我父母总说要**趁天晴修屋顶**，所以日子好时我会存钱。
The company decided to fix the roof while the sun is shining and improve safety before any accidents happen.
公司决定**趁天晴修屋顶**，在发生事故前提升安全措施。
If you want to avoid problems later, it's smart to fix the roof while the sun is shining.
想以后不出问题，**趁天晴修屋顶**是明智的。
Everyone knows you have to fix the roof while the sun is shining—don't wait until things break down.
大家都知道要**趁天晴修屋顶**——别等坏了再动手。
We all try to fix the roof while the sun is shining, but sometimes life doesn't give us that chance.
我们都想**趁天晴修屋顶**，但有时生活不给机会。