无风不起浪的英文：
[Literal Meaning]
no/wind/not/rise/wave
There are no waves without wind.

[解释]
形容事情发生一定有原因。

[Explanation]
There must be a cause for an effect.

[例子]
无风不起浪，如果你不酒后开车，就不会发生这起交通事故。

[Example]
There is no smoke without fire. If you had not driven after drinking, this traffic accident would not have happened.

[英文等价词]
Coming events cast their shadows before.
Where there's reek and there's heat.

Everything has its seed
无风不起浪

Where there's reek there's heat
无风不起浪

Nothing comes out of the sack But what was in it
无风不起浪