Should I slow down at a red light, a green light, or a yellow light?

我应该在红灯时、绿灯时还是黄灯时减速呢？

youdao

youdao

Very little light filters through the canopy of leaves and branches in a rain forest to reach ground level—or close to the ground—and at those levels the yellow-to-green wavelengths predominate.

在雨林中，很少有光透过树叶和树枝形成的树荫到达地面——或者接近地面——在这些高度上，黄色到绿色的波长占主导地位。

youdao

It's no use talking about the negative relationship between a red light and a green light and a yellow, white, or blue one because they all have the same value.

讲什么它是红灯，不是绿灯,不是黄灯白灯一点关系都没有,它们所代表的意义都一样。

耶鲁公开课 - 文学理论导论课程节选

Now in a stoplight, it only has three, one is tempted to say, variables plainly differing from each other: red, yellow and green we have two ways of thinking about the red light.

交通灯，三种灯，红黄绿，它们的颜色和彼此不能,我们有两种方式认识红灯的意思。

耶鲁公开课 - 文学理论导论课程节选

To the charging port's right, a small yellow light turns green when the battery's full.

ENGADGET: Nook HD review: a high-def tablet with the heart of a reader

It is an interesting triple "coincidence, " which probably evolved over time, that our eyes are most sensitive to yellow-green light, which happens to be the characteristic color of sunlight as well as the color that can most easily be transmitted through the Earth's atmosphere.

CNN: Why gamma-ray burst shocked scientists

In addition to the numerical score given to each company, the Climate Counts scorecard also gives companies a green, yellow or red light rating.

FORBES: New Report Says Nike Ranks No. 1 In Combating Climate Change