他的雄辩在事实面前不起什么作用。

His eloquence did not avail against the facts.

youdao

现在，体重几乎不起什么作用。

Today it makes almost no difference.

youdao

如果冲突让你想哭拒绝和悲伤技巧让你恢复平静也许不起什么作用。

If arguments or conflict make you feel tearful, rejected and sad, techniques to quiet and calm may not work for you. You may need something that stimulates and energizes you.

youdao

What this is is learning the relationships between what you do and how successful or unsuccessful they are, learning what works and what doesn't.

操作性条件作用,是在学习行为与成功,或失败程度之间的关系，学习什么行为起作用,什么行为不起作用。

耶鲁公开课 - 心理学导论课程节选