- The driver must understand the meaning of the traffic signal representative.
The traffic sign in front means be careful of falling rocks.
The correct traffic signs can make traffic smooth and safe.
If people do not obey the traffic signs, the traffic will be chaotic.
When the traffic signal turns green, the car can pass.
A new traffic signal was added to this intersection in the early hours of yesterday.
At the intersection near the school, you can see the traffic signs of attention to children.
Tom didn't pass the written test because he didn't know what the traffic signal meant.
Jack used the game to help Mary know the traffic signs.
When James was three years old, he had recognized ten traffic signs.