未雨绸缪的英文：
[Literal Meaning]
without/rain/bind
to repair the house before it rains

[解释]
事先做好准备工作。

[Explanation]
to take precautions

[例子]
对于全球变暖的趋势，我们应该未雨绸缪，现在就做好准备。

[Example]
As to the trend of global warming, we should plan ahead and make preparations now.

[英文等价词]
prepare for a rainy day

Although the sun shine, leave not your cloak at home.
未雨绸缪。

Look ahead; look forward
瞻前;未雨绸缪

To save against a rainy day
未雨绸缪

Keep something for a rainy day.
未雨绸缪。

against a rainy day
未雨绸缪

Keep something for a rainy day
"未雨绸缪,有备无患"

Don't have your cloak to make when it begins to rain
别等下雨再做雨衣/宜未雨绸缪

I'm trying to look ahead at what might happen and be ready to handle it.
我打算未雨绸缪，作好应对准备。

To make sure of the sources of goods is a businessmen's way of operation, that is, make hay while the sun shines.
货源落实，是商家未雨绸缪的经营之术。

This guy's a nut and you'd better get ready for rainy days.
这个家伙是一个难对付的人，你最好是未雨绸缪。