black ice
noun /ˌblæk ˈaɪs/
/ˌblæk ˈaɪs/
[uncountable]- 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。
- Motorists have been warned about black ice on the roads.