你和他说过灯的事了吗？
人们过马路时，它们会闪灯“告诉”司机减速，等待人们过马路。
When people cross the street, they flash to "tell" drivers to slow down and wait for people to go across the street.
幸运的是她要过马路的时候交通灯转绿灯了，所以她成功了。
Luckily the traffic lights turned green as she was to cross the road, so she made it.
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