雷雨云

例句：

1. 1. The thunderstorm cloud over the mountain was dark and ominous.
   山头上的雷暴云是黑暗而令人不安的。
2. 2. The storm cloud above the city was a warning of impending rain.
   城市上空的乌云预示着即将下雨。
3. 3. The thunderclouds were moving across the sky, casting long shadows on the ground.
   雷电云在天空中移动，给地面投下了长长的影子。