A single red LED shows that the power is switched on.

单支红色发光二极管表示电源已接通。

《牛津词典》

All its sectors ended in the red, led by basic materials, off 7.4%; energy, off 6.4%; and industrials, off 5.4%.

所有分类指数全线下跌，基础材料类股领跌，跌幅高达7.4%；能源类股跌幅为6.4%；工业类股下跌5.4%。

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The Calgary Saddledome uses 1,800 feet of red LED tubing that can be seen for miles.

卡尔加里的马鞍形标识使用了1800英尺的红色LED管，即使在几英里之外也能看到。

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She led Red Cross workers in Florida during an outbreak of the disease yellow fever.

VOA: special.2009.07.26

It isn't the Red Sea. That's a mistranslation that occurred very very early on, so it's led to the notion that they were at the Gulf of Aqaba or somewhere near the actual big ocean water.

并不是红海，这个错误的翻译很早以前就存在了,让人们以为是在亚喀巴湾,或者是接近真正意义的大洋的什么地方。

耶鲁公开课 - 旧约导论课程节选

This led to the Red Cross and Red Crescent Movement.

VOA: special.2009.07.01

Markets sharply reversed their ascents Monday after the bell, falling into the red led by a fast drop in the Nasdaq, which declined 1.5%.

FORBES: Tech Stocks Lead Decline, But Don't Count On Equities To Lose In Long Term

At the entrance to the bar, Kazuhide Asaba has contributed a contemporary piece from his personal collection: a futuristic black sculpture flashing red LED numbers by the artist Tatsuo Miyajima.

FORBES: Ryokans Beyond Calm

But the Red Sox led only 1-0 before scoring four runs in the seventh.

NPR: Lester Pitches 1-Hitter, Red Sox Top Blue Jays 5-0