红绿灯的英文：
(red and green) traffic light
traffic signal

参考例句：

Traffic controlled by red and green lights
用红绿灯管制的交通

These lights flickered continuously like traffic lights which have gone mad.
灯炮一刻不停地闪烁着，就像失去了控制的红绿灯。

Keep going straight and turn at the first stoplight.
一直往前走，在第一个红绿灯的地方转弯。

Walk until you get to the first stoplight.
你一直走到第一个红绿灯的地方。

Just past the Barlby roundabout there's temporary traffic lights.
在刚过巴尔比环岛的地方，有一个临时红绿灯。

red是什么意思：
adj. 红色的；褐红色的；深红的；布满血丝的；支持左翼政治观点的；社会党的
n. 赤字；亏空

Red got his nickname for his red hair.
“红毛”的绰号源于他的红头发。

The sun will swell into a red giant.
太阳将膨胀为一颗红巨星。

red lake C pigment
色淀Ｃ颜料红

green是什么意思：
adj. 绿的；青葱的；未熟的，嫩的；发青的；无经验的
n. 绿色，青色；草坪；蔬菜；格林（姓氏）
v. （使）成为绿色

Green with envy
非常妒忌

Emerald green is excluded.
不含宝石翠绿色。

Green is my favourite, too.
绿色也是我最喜欢的。

traffic是什么意思：
n. 交通；买卖；非法交易；运输，人流，货流；电信
v. 在...上通行；做…买卖

The traffic discords.
交通噪音刺耳。

Traffic lane contraction, Traffic Land Reduction
车道缩减

The dense fog paralyzed the traffic.
浓重的大雾使得交通完全中断。