They produce only a small amount of light.

VOA: special.2009.12.21

And these rings are indicative of the crystal structure of nickel and can be explained only by invoking wavelike properties of light.

这些光圈,表明了了镍的晶体结构,而且只能通过,光线中波的特征来解释。

麻省理工公开课 - 固态化学导论课程节选

So, it turns out that the photoelectric effect is not the only evidence for the fact that light has these particle-like characteristics.

所以，原来是光电效应,不是唯一的证明光具有,粒子特性的证据。

麻省理工公开课 - 化学原理课程节选

"The policeman who ran into them was not only drunk, but had gone through a red light and had no siren on.

VOA: standard.2010.05.19

If only you had seen the light and stuck to the soul theory of personal identity, all these problems could be avoided.

如果你们能够领悟真谛，接受灵魂理论，这些麻烦就自然消失了。

耶鲁公开课 - 死亡课程节选

LEDs produce as much light as incandescent light bulbs but consume only 10 percent of the electricity and last many times longer.

VOA: standard.2009.12.13

kerosene is expensive, produce only dim light and generate polluting fumes that cause health and environmental problems.

VOA: standard.2009.12.13

"Today,as an advocate for the hungry and the hunted, the forgotten and the ignored, Mary Robinson has not only shone a light on human suffering, but illuminated a better future for our world,"

VOA: standard.2009.08.12