积卷云

例句：

1. 1. The sky was filled with the colorful cumulonimbus clouds.
   天空被五彩缤纷的积云所填满。
2. 2. The cirrus clouds were so delicate that they seemed almost like mist.
   卷云如此精致，仿佛是雾一样。
3. 3. The cumulonimbus clouds were a reminder of the storms that could come from them.
   积云提醒我们，它们可能会带来风暴。