Turn the screwdriver till the output switches (LED red).

直到输出打开开关(红色LED)螺丝刀。

youdao

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》

A red-faced Mr. Jones was led away by police.

琼斯先生红着脸被警察带走了。

《柯林斯英汉双解大词典》

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

The so-called Red Shirts, led by the United Democratic Front against Dictatorship,or UDD, have the backing of the main parliamentary opposition group, the Puea Thai Party.

VOA: standard.2010.03.20

Mantle had led the Yankees to a first place finish and a return to the World Series while the Jensen-led Red Sox finished in third place 13 games behind the Yankees.

FORBES: Why Justin Verlander Deserves To Be The American League's MVP

Painful revamping of a poorly integrated expansion led to red ink in 2001 and 2002.

FORBES: Ready, Aim, Fire

The New York native led the Red Storm in scoring the last three seasons.

WSJ: Liberty bolster frontcourt with Bone, Young