spiral crest

例句：

1. 1. The mountain was covered in a spiral crest of snow.
   这座山被螺旋形的雪覆盖着。
2. 2.The sun rose over the spiral crest of the mountains.
   太阳从山峰的螺旋形顶部升起。
3. 3.The climbers reached the top of the spiral crest, feeling exhilarated.
   登山者到达了螺旋形山顶，感到兴奋不已。