An interface is like a contract between a function and a caller. The caller agrees to provide certain parameters and the function agrees to do certain work.

一个交互界面，就像是函数和调用者的一个中间人。调用者提供特定的参数，函数完成特定的任务。

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I still do a certain amount of work for them.

我仍旧为他们做一定数量的工作。

《柯林斯英汉双解大词典》

For milder depressions, certain forms of psychotherapy do work well.

对于比较轻微的抑郁症，某些形式的心理疗法确实很有效。

《柯林斯英汉双解大词典》

And Descartes said, "Boy, these machines respond in certain ways to certain actions so machines can do certain things," and in fact, he says, "Our bodies work that way too.

因此笛卡尔说,"天呐,这些机器可以对特定的动作,做出特定的反应,原来机器也是可以完成某些动作的",实际上,他说道,"我们的身体也是这样运作的

耶鲁公开课 - 心理学导论课程节选

It's kind of unsettling because we like to know what things are, but at the same time it's not really a big problem because as long as we know about the fact that a certain notion of literature exists in certain communities we can begin to do very interesting work precisely with that idea.

可能会有点让人不安，因为我们总想知道事物的定义，但知不知道,实际上问题不大,只要我们知道在特定群体中对文学有特定的认识,我们就能在这种认识上做文章。

耶鲁公开课 - 文学理论导论课程节选

You should expect to do a certain amount of scut work, especially if you're interning in a glamorous business like theater or filmmaking, or in a profession that touches on the lives of celebrities.

FORBES: Careers

"(Those medical disciplines) have ill-served that community historically, and there's a certain amount of distrust, and you can't do this work without absolute trust, " he said.

CNN: Hip-hop highs: Long on lyrics, short on rehab

All those key stakeholders have been selected on the basis of inclusiveness and representativeness with a certain command of legitimacy and respect in the work they do and represent as individuals and organizations with the women and youth groups at the district and national levels.

UNESCO: Social and Human Sciences Events | United Nations Educational, Scientific and Cultural Organization