The traffic on the main streets has a longer green signal than that on the small ones.

主要街道上的绿灯时间比小街道上的长。

youdao

At 9:30 am, the full red/yellow/green signal cycle might be 140 seconds.

上午九点半的时候，完整的红黄绿信号灯变换周期大概为140秒。

youdao

Two green signal shells shot up.

升起了两颗绿色信号弹。

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In most places in the world, a green light is a signal to move ahead.

VOA: special.2010.05.23

A green light on a traffic signal means your car can continue on.

VOA: special.2010.05.23

Valderlei Canuto Leandro, 32, host of the Sinal Verde (Green Signal) programme on Radio Frontera, was shot dead by unidentified assailants in the city of Tabatinga, in the state of Amazonas, according to local press reports.

UNESCO: MEDIA SERVICES

It added that allowing smoking on set could "signal a green light for much more widespread use of smoking in productions".

BBC: Cigarette

The red, green and blue components of the signal are fed into three separate high-definition cathode-ray tubes (in effect, fancy black-and-white televisions).

ECONOMIST: Curtains for celluloid