雷云

例句：

1. 1. The thunderstorm brought heavy rain and a lightening bolt.
   暴风雨带来了大雨和一道闪电。
2. 2. The sky was filled with lightning clouds, signaling a storm approaching.
   天空布满了闪电云，预示着一场暴风雨即将来临。
3. 3. The cloud formations were so dense that they resembled a thundercloud.
   这些云层如此密集，看起来像是雷云。