They are completely covered by their blue head scarves.

VOA: special.2009.03.11

For instance, are blue collar workers at the university getting paid a decent wage, are they compensated fairly.

比如，大学工人们,的报酬是否过低，他们是否获得应有的补偿。

普林斯顿公开课 - 人性课程节选

So they've got these superhighways which is, I don't know if you've seen them, they are marked on in blue.

所以，他们修了这些高速路，我不知道你见过没有，他们被标成蓝色了。

伦敦的蓝色自行车 - SpeakingMax英语口语达人

"These people with blue lights are above the law." "They are not ready to follow it.

VOA: standard.2010.05.19

There are different theories about why they call them Blue Sky Laws.

至于为什么把它叫做蓝天法,有很多不同的说法

耶鲁公开课 - 金融市场课程节选

For any tourists who do cross the bridge into Mexico, the heavily armed men in blue masks are among the first sights they see.

VOA: standard.2009.04.30

In this diagram I'm showing you it's easy to tell because some are yellow, and some are pink, and some are blue but that's not the way they come out of the bone marrow.

在我给你们看的这张图表中很简单,因为其中一些细胞是黄色的,有些是粉红的,有些是蓝的,但它们在骨髓里没有这些颜色

耶鲁公开课 - 生物医学工程探索课程节选

"Most of the fish,shrimp, blue crab they are spawning out in the Gulf right now, and any of those really small larvae fish and crab, is probably going to be killed if they encounter the actual oil spill."

VOA: standard.2010.07.13

Now, just to repeat, again I know I've got some math phobics in the audience, let me just slow down a second, all I'm doing here is I'm saying look at this equation of the pink line, look at this equation of the blue line, X is when they cross, i.e., they are equal to each other.

我再重复一遍,我知道你们之中有些人数学不怎么好,我放慢一点说,我是这么解的,看这条粉线的方程,还有这条蓝线的方程,X是二者的交点,也就是说这点两个方程相等

耶鲁公开课 - 博弈论课程节选