这些节食方法中的95%都不奏效。

95 percent of these diets do not work.

《柯林斯英汉双解大词典》

一种设计效果很好，反复应用于其他地方，加上一些看似没什么影响的改进，突然有一天它就不奏效了。

Perhaps a design works so well. It is adopted elsewhere again and again, with seemingly harmless improvements, until, suddenly, it does not work at all anymore.

youdao

在很多情况下，这种策略并不奏效。

In many cases that strategy did not work.

youdao

So if the only tool I taught you in this class was dominated strategies and the iterative deletion of dominated strategies we'd be stuck.

所以之前讲的,不要采用劣势策略,和迭代剔除劣势策略在这里就不奏效了

耶鲁公开课 - 博弈论课程节选

But, it doesn't always work because you have to be damn sure you're right.

但此方法也不经常奏效因为你必须得,十分肯定你的做法是正确的。

耶鲁公开课 - 金融市场课程节选

It worked for them, they didn't have all these chronic diseases like we have, now they had other challenges, infectious diseases primarily, but they didn't have the chronic diseases like we have, like cancer, heart disease, hypertension, hyperlipidaemia, etc., and Diabetes particularly.

这曾对祖先们奏效,他们不像我们会得一些慢性疾病,但他们要面对其他的挑战,主要是传染性疾病,但他们不像我们那样受着慢性疾病的困扰,如癌症,心脏病,高血压和高脂血等,特别是糖尿病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选