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

信号灯亮绿灯表示你的车可以继续行。

So new traffic signals emerged in various forms.

因此新的信号灯以各种形式出现。

But often they just pass by, taking the human traffic signal for granted.

司机常会过，把人体标志当做理所当然。

These three buttons look like traffic signals, don't they?

这三个按钮看起来像信号，不是吗？

So officials have created what they say is the first traffic signal for, you get it, camels.

所以官员们创造了所谓的第一个为驼建造的信号灯。

By 1922 many traffic signals were being automated on timers.

到1922年，许多信号灯有了倒计时。

Lester Wire, a policeman in Salt Lake City, Utah created the electric form of the traffic signal.

在犹他州盐湖城，一位名叫莱斯特的警察发明了使用电力的红绿灯。

Only one traffic signal separates you from Malibu.

只需一个信号灯，你便与马里布相隔。

A traffic signal is not efficient at all.

信号灯根本就一点也不高效。

In 1923 Morgan patented a three-way traffic signal that offered stop, go, and all-stop options.

1923 年，摩根获得了三向信号灯的专利，该信号灯提供停止、行停选项。

C. Flexible timing of traffic signals.

C. 信号的灵活配时。

So another way you'll know when to stop is when you see a stoplight or a traffic signal.

因此，您知道何时停止的另一种方式是当您看到红绿灯或信号灯时。

Funny, growing up, Oxnard had this tourist initiative called, Oxnard, only one traffic signal separates us from Malibu.

有趣的是，在成长过程中， 奥克斯纳德曾有一个名为“奥克斯纳德，仅一盏信号灯之隔， 我们与马里布相邻” 的旅游推广活动。

But usually a traffic signal would be at an intersection, where two streets cross.

但常信号灯会在叉路口，也就是两条街道汇的地方。

You look at a traffic signal and you say, OK, let me wait when it's safe for me to cross.

你看着信号灯，说：“好的，等安的时候我再过马路。”

On December 9th, 1868, the world's first traffic signal was installed near Westminster Bridge at the corners of Great George and Brige streets.

1868年12月9日，首个信号灯安装在了威斯敏斯特大桥附近，位于乔治街布里奇街的拐角处。

This, of course, was usually on corners or intersections where there was no traffic signal, no electronic signal to stop cars.

当然， 这常是在没有信号的拐角处或十字路口，没有电子信号可以停车。

The examiner had me drive around the block, checking to see that I stopped at the stop signs and the traffic signals.

考官让我绕着街区开车，检查我是否在停车标志信号灯前停车。

Although traffic signals had been in use for some time, most were simple devices that directed traffic to either stop or go.

尽管信号灯已经使用了一段时间，但大多数都是引导停止或行的简单设备。

Cesar drove around the block so the examiner could check to see that he stopped at the stop signs and traffic signals.

塞萨尔绕着街区开车，以便考官可以检查他是否在停车标志信号灯前停车。