When people cross the street, they flash to "tell" drivers to slow down and wait for people to go across the street.
人们过马路时,它们会闪灯“告诉”司机减速,等待人们过马路。
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Stranger One: "Hank" : On a street near my house, they have been repairing a faulty sewer main and a slightly older gentleman holds the "SLOW" sign to signal to the cars passing by.
The summer sky and a sundress brighten the shaded "slow stairs" of the High Line's 14th Street entrance, which earned the nickname because of the extended platforms between flights.