状如蜗牛壳的

例句：

1. 1. The snail shell is a fascinating creature that has been around for millions of years.
   蜗牛壳是一种令人着迷的生物，已经有数百万年的历史了。
2. 2. The snail shell is often used as a decorative item in homes and offices.
   蜗牛壳经常被用作家居和办公室的装饰品。
3. 3. The snail shell is a symbol of patience and perseverance.
   蜗牛壳是耐心和毅力的象征。