cumulonimbus capillatus cloud

例句：

1. 1. The storm passed quickly, leaving behind a cumulonimbus cloud as the sun rose.
   暴风雨迅速过去，留下了一个积雨云作为太阳升起的见证。
2. 2. The meteorologist was studying the cumulonimbus cloud formations for signs of an impending storm.
   气象学家正在研究积雨云的形成，寻找即将来临的风暴的迹象。
3. 3. The cumulonimbus cloud is a common feature in tropical regions during the rainy season.
   积雨云是热带地区雨季常见的特征。