名词
中文翻译：绿灯
同义词：
['green signal', 'green light例句：1. The driver must wait for the green light before crossing the road.（司机必须在过马路前等待绿灯。）']
例句：
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1. The driver must wait for the green light before crossing the road.
司机必须在过马路前等待绿灯。
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2.The traffic police gave the green light to the car ahead of us.
交通警察允许我们前面的车通过。
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3. The green light is a symbol of safety and freedom.
绿灯是安全和自由的象征。