Definition: to stay in the air for a long time Level: C2
浓雾笼罩着小镇。
Thick fog ___hung over the town.
雾霾像致命的云一样笼罩着城市，导致了许多健康问题。
The smog ___hangs over the cities like a deadly cloud, resulting in many health problems.
一层薄雾整天都悬浮在山谷中。
A faint mist ___hangs in the valley all day long.
