英语学习网站“无风不起浪”，字面意思是“没有风就不会起波浪（there are no waves without wind）”，比喻事情发生总有个原因，事出有因，可以翻译为“nothing comes out of nothing”，或“everything has its seed”。
例句：
俗话说，“无风不起浪。”
As the saying goes, ‘There’s no smoke without fire.’
起初他并不相信这些谣言，但仔细想想觉得无风不起浪。
At first he didn’t believe the rumors，but on second thought he realized that there must have been some reason for them.
