A broken blue line means the course of a waterless valley.

蓝色虚线代表无水流过的山谷走向。

《柯林斯英汉双解大词典》

There is a sound of distant reapers, and yonder rises a blue line of cottage smoke against the woodland.

远处传来收割庄稼的声音，远处背靠树林的村舍那里升起一缕青烟。

youdao

The blue line represents the trunk.

蓝色的线表示主干。

youdao

They got us,and it hurt. We're going to moveback to the blue line.

VOA: standard.other

Congratulations again to those that did well and let's do what we can to get everybody over to the right of that blue line.

再次鼓励那些取得好成绩的同学,让我们做我们能做的来让每个人,过及格线。

麻省理工公开课 - 固态化学导论课程节选

What I did in this diagram is I computed the efficient portfolio frontier-- now it's the blue line with three assets.

在这张图表中,我计算了有效边界-,蓝色线表示三种资产的组合。

耶鲁公开课 - 金融市场课程节选

If we zoom in we can clearly see the blue line even slip below zero.

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The red line is the actual unemployment rate while the blue line is seasonally-adjusted.

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The stock market rolled over (the vertical blue line) into the bear market in October, 2007.

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