开个小玩笑罢了，并无恶意的。

It's just a bit of harmless fun.

《牛津词典》

我们做那件事只是开个玩笑而已。

We only did it for a giggle.

《牛津词典》

给马蒂打电话，让他开个价。

Call Marty, tell him to name his price.

《柯林斯英汉双解大词典》

John Geanakoplos and I had a meeting and we tried to divide up the subject matter of finance into two courses.

约翰·吉纳科普洛斯和我开了个会,我们将金融这一学科,分为两门课

耶鲁公开课 - 金融市场课程节选

I thought this would be a good lead in to the second theme of this lecture, which is framing.

我认为这可以为第二个主题,即框架效应，开个好头。

耶鲁公开课 - 金融市场课程节选

OK. So we should be able to figure this out for any orbital that we're discussing, and when we can figure out especially radial nodes, we have a good head start on going ahead and thinking about drawing radial probability distributions.

我们可以将这种方法,用于任何轨道，当我们可以算出有多少个径向节点的时候，我们就为画出径向概率分布,开了个好头。

麻省理工公开课 - 化学原理课程节选