The use of light and dark symbolizes good and evil.

用光明与黑暗来象征善与恶。

《牛津词典》

It was getting dark so I switched on the light and drew the curtains.

天快黑了，我打开灯，拉上了窗帘。

《牛津词典》

Research suggests that babies learn to see by distinguishing between areas of light and dark.

研究显示婴儿是通过区分明亮区域和黑暗区域来学会观看的。

《柯林斯英汉双解大词典》

Video from the theater shows a man they say is Holmes -- wearing dark pants, a light-colored shirt and a dark stocking cap covering his orange hair -- entering the multiplex before the movie begins.

CNN: STORY HIGHLIGHTS

On the inside: My luxury package afforded me leather-trimmed bucket seats, a heated and cooled cup holder (appreciated in the heat) and a wood-leather wrapped steering wheel packaged in two-tone dark frost beige and light frost beige.

FORBES: Car of the Week: Chrysler 300 Luxury Series

"The good news is that people who stay up late in front of the television and computer may be able to undo some of the harmful effects just by going back to a regular light-dark cycle and minimizing their exposure to artificial light at night, " Bedrosian says.

CNN: Unplug! Too much light at night may lead to depression