The shepherd followed, carrying a torch to light his way.

牧羊人跟在后面，举着火把把路照亮。

《柯林斯英汉双解大词典》

A search is now under way to confirm the suspected existence of particles of matter that move at a speed greater than light.

目前正在进行一项研究，以验证一些真实性存疑的物质粒子究竟是否存在。而这些物质粒子的移动速度大于光速。

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In optical astronomy, using a telescope and observing the stars that way, we rely on visible light waves.

在光学天文学中，在用望远镜观察恒星时，我们依靠的是可见光波。

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He was famous for painting flowers,buildings and the natural environment in a way that explored color and the changing effects of light.

VOA: special.2010.03.24

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

麻省理工公开课 - 化学原理课程节选

An app can be as simple as a program that turns a mobile phone into a flashlight to light your way at night.

VOA: special.2011.03.22

Until now, the existence of such a device -- which works by splitting light in a way that points to its source -- has only been hinted at in fleeting literary mentions.

ENGADGET: Alt-week 3.9.13: Sunstones, knotted vortices and a zero-g robot

This is done using a technique called interferometry, which merges the beams of light in a way that simulates the sharpness (though not the brightness) of the images that would be obtained from a telescope whose mirror was 200 metres across.

ECONOMIST: Beneath the Southern Cross I stand | The

Then he discovered a new Japanese method of cutting diamonds: When viewed under a low-magnification (3x) lens, the stone refracted light in such a way as to give off a pattern of eight heart-shaped sparkles at the bottom of the diamond and eight arrow-shaped fire-bursts through the top--hence the name "hearts-and-arrows" diamonds.

FORBES: Stones on fire