[] No smoke without fire 无风不起浪

--> No smoke without fire 这句话的直译是无火不成烟，其实就是无风不起浪的意思。
例句

He seems like a good guy but there’s no smoke without fire.

He claims he didn’t do it but there’s no smoke without fire.

请注意英语里另一个含有smoke 的短语是To go up in smoke 意思是梦想破灭或计划落空。Now he’s lost his job, his dream of buying a new house has gone up in smoke.Now the airline has gone out of business our plans to travel round the world have gone up in smoke.