spiral rain-band echo

例句：

1. 1. The sound of the spiral rain is soothing to the ears.
   螺旋形雨声令人心旷神怡。
2. 2.The rain-band echoes can be heard from a distance.
   从远处可以听到雨带回声。
3. 3.The spiral rain-band echoes are a common feature in tropical regions.
   热带地区常见的螺旋形雨带回声。