这篇博文引起了一组有趣的来来回回的评论。

This created an interesting back-and-forth on the comments section of the article. For instance, Mike Amundsen states.

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球员从欧洲，印度，亚洲和大激流来来回回的。

Players come and go, from Europe, India, Asia, Grand Rapids.

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如果还需要来来回回的多次批准那就更糟糕了。

Worse yet is when approval is needed several times along the way, meaning it has to be bounced back and forth a bunch of times.

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And then I could put a couple of plates and I could raster the beam so that when I am looking here,the beam goes back and forth about 80 times a second.

然后我放了两个感光片,我可以检测到光束所以,当我观察时,电子束以每秒80次的速度来来回回了。

麻省理工公开课 - 固态化学导论课程节选

The cookies were going back and forth and back and forth and the hearts up and down, well, this thing that we had that called a loop last week with a forever block with a statement inside of it is simply gonna look a little something like this.

这些饼干人来来回回的移动,还有这些爱心们上上下下地漂浮,都用到我们上周提到过的循环结构,当然还有个声明在里面，就有点像屏幕上,显示的这样。

哈佛公开课 - 计算机科学课程节选

The sense of going back and forth, no one of us on top, not correspondent in a vertical way, how things going down there.

这种来来回回的感觉，没有人是在高处，也没人在低处。

普林斯顿公开课 - 人性课程节选