ice over/up (also be iced over/up) phrasal verbphr v LIQUIDto become covered with ice 被冰覆盖,结冰 → icy Schools were closed when the roads iced over. 道路结冰,学校停课了。
The plane’s engines had iced up. 飞机的引擎结了冰。
ice over/up• Schools are closed, roads are iced over, rain has turned to sleet.• Parts of the Bristol Avon were iced over, resulting in the cancellation of the Bradford-On-Avon Open.• The roads may have iced over, the rain may be too ugly to face.
→ ice over/up at ice2(2)