freeze over
US /friːz ˈoʊ.vər/
UK /friːz ˈoʊ.vər/
1.
結冰, 凍結
if a body of water freezes over, it becomes covered with ice
:
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The pond froze over completely during the cold snap.
寒潮期間，池塘完全結冰了。
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We can go ice skating once the lake freezes over.
湖面結冰後，我們就可以去滑冰了。