black ice - Definition & Meaning

a thin, nearly invisible layer of ice on a road surface, often causing dangerous driving conditionsa thin, nearly invisible layer of ice on a road surface, often causing dangerous driving conditions

Black ice is a thin, nearly invisible layer of ice that forms on roads, sidewalks, and other surfaces when temperatures drop below freezing. It is called black ice because it is so clear that the dark surface underneath, such as asphalt, can be seen through it. Since it is difficult to notice, it can be very dangerous for drivers and pedestrians, as it makes surfaces extremely slippery. Black ice often forms at night or early in the morning, especially on bridges, overpasses, and shaded areas where the ground stays colder for longer.Black ice is a thin, nearly invisible layer of ice that forms on roads, sidewalks, and other surfaces when temperatures drop below freezing. It is called black ice because it is so clear that the dark surface underneath, such as asphalt, can be seen through it. Since it is difficult to notice, it can be very dangerous for drivers and pedestrians, as it makes surfaces extremely slippery. Black ice often forms at night or early in the morning, especially on bridges, overpasses, and shaded areas where the ground stays colder for longer.

例句

He warned drivers about the black ice on the bridge.
他警告司机们注意桥上的黑冰。
They treated the roads to prevent the formation of black ice.
他们处理了道路以防止黑冰的形成。
She skidded on black ice and nearly lost control of her car.
她在黑冰上打滑，差点失去了对汽车的控制。