cloud seven

例句：

1. 1. The clouds were so thick that it looked like cloud seven was coming down.
   云层如此之厚，看起来像是云七正在下降。
2. 2. She had a dream about cloud seven and the stars.
   她有一个关于云七和星星的梦想。
3. 3. He spent hours watching the clouds as they moved across the sky in the cloud sevens.
   他花了几个小时观察天空中移动的云朵。