作为一个过渡的办法，车道都是单线的，司机靠着路的一侧开上几英里，再切换到路的另一侧。

As an interim measure a single lane would be paved, adhering to one side of the road for a few miles and then switching to the other side.

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她还设计了一个特殊的卷轴，把蚕茧里的纤维拉成一根单线，这样它们就足够结实，可以织成织物。

She also devised a special reel to draw the fibres from the cocoon into a single thread so that they would be strong enough to be woven into fabric.

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例如，经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。

For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum.

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That naturally hits monoline insurance companies more than multiline insurance companies because they are more specialized and more vulnerable.

它对单线保险公司的冲击,自然要大于多线保险公司,因为它们的业务更单一也更容易受到影响

耶鲁公开课 - 金融市场课程节选

I want to talk about certain kinds of monoline insurance companies that-- the biggest--one category is property and casualty.

下面我想分类介绍一下,单线保险公司,最大的一类是财产保险公司

耶鲁公开课 - 金融市场课程节选

I just wanted to get her on the subway and she, too, she did mention I want a round trip, she wants to be able to come back from Park Street Station so where is the option that just says one way or round trip?

我只想让她乘上地铁，她也是，她提到她想要一个环形旅行，她想,从Park，Street地铁站返回，但是哪里有一个选项,来说明是一个单线的还是环线的？

哈佛公开课 - 计算机科学课程节选