storm cloud
noun/ˈstɔːm klaʊd/
/ˈstɔːrm klaʊd/
[usually plural]- a dark cloud that you see when bad weather is coming
风暴云 - Above the mountains, storm clouds were gathering.
暴风云正在群山上空聚集。 - (figurative) The storm clouds of revolution were gathering.
乌云滚滚，山雨欲来，革命即将爆发。 - In 1939 the storm clouds gathered over Europe.
1939 年，战争的阴云笼罩着欧洲。
- Above the mountains, storm clouds were gathering.