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

交通信号灯亮绿灯表示你的车可以继续行驶。

So new traffic signals emerged in various forms.

新的交通信号灯以各种形式出现。

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

司机通常会驶过，把人体交通标志当做理所当然。

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

这三个按钮看起来像交通信号，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交通信号灯。

By 1922 many traffic signals were being automated on timers.

到1922年，许多交通信号灯有了倒计时。

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.

只需一个交通信号灯，你便与马里布相隔。

A traffic signal is not efficient at all.

交通信号灯本就一点也不高效。

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

1923 年，得了三向交通信号灯的专利，该信号灯提供停止、行驶和全停选项。

C. Flexible timing of traffic signals.

C. 交通信号的灵活配时。

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

，您知道何时停止的另一种方式是当您看到红绿灯或交通信号灯时。

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，仅一盏交通信号灯之隔， 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.

但通常交通信号灯会在交叉路口，也就是两条街道交汇的地方。

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

你看着交通信号灯，说：“好的，等安全的时候我再过马路。”

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，首个交通信号灯安装在了威斯敏斯特大桥附近，位于乔治街和布里奇街的拐角处。

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

当然， 这通常是在没有交通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和交通信号灯前停车。

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

尽管交通信号灯已经使用了一段时间，但大多数都是引导交通停止或行驶的简单设备。

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和交通信号灯前停车。