black ice

noun
🔊/ˌblæk ˈaɪs/
🔊/ˌblæk ˈaɪs/
[uncountable]
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  1. ice in a thin layer on the surface of a road黑冰,薄冰(路面上很薄的冰层)
    • Motorists have been warned about black ice on the roads.已经提醒机动车司机当心路面有很薄的冰层。
    Topics Transport by car or lorryc2