随着钻头往下钻，管子一段一段地加接上去。

As the bit drills down, pipe is added length after length.

youdao

要集中火力，一段一段地分别说明合同双方同意做什么，不同意做什么。

Just explain in words what the parties agree to do or not do paragraph by paragraph.

youdao

他还说“当洪水退去之后，动物们还要被收留很长一段时间，因为回到他们原来的栖息地需要一段时间。”

"Animals will be displaced for so long that, when the water does recede, it will take a while to get back to their original habitats," he said.

youdao

So what she's going to do is start loading up the electrons, and you see this wand here move slowly, and it takes a while to do it, start become perpendicular.

所以她将要加载电子，你们看到这个棒慢慢地移动，这个需要一段时间，开始变得垂直了。

麻省理工公开课 - 化学原理课程节选

Imagine the sort of Heisenberg-esque problems we would get carefully following romantic couples over time and interfering with them to ask questions and make observations.

想想我们将遇到海登堡似的问题,在一段时间内，小心谨慎地跟踪情侣,干扰她们的生活,问问题，作观察。

耶鲁公开课 - 心理学导论课程节选

Notice the freedom that he exercises in unfolding what feels like an improvisatory monologue in which he makes you race to keep up with him as he follows a semi-hidden logic that he treats as self-evident.

注意他随意地展开,一段即席的独白,让所有人都跟随他的脚步,而他跟随着自己若隐若现的但自认为显而易见的逻辑。

耶鲁公开课 - 现代诗歌课程节选