storm cloud

柯林斯词典

1. N-COUNT Storm clouds are the dark clouds which are seen before a storm. 暴风云[usu pl]
2. N-COUNT You can use storm clouds to refer to a sign that something very unpleasant is going to happen. 不祥的预兆[正式] [usu pl]
Over the past three weeks, the storm clouds have gathered again over the government. 在过去三周里，不祥的阴云再次笼罩了政府。