ribbed shell

例句：

1. 1.The ribbed shell is a popular choice for beach decorations.
   带刺的贝壳是海滩装饰的热门选择。
2. 2.She found the ribbed shell fascinating and wanted to keep it as a souvenir.
   她发现带刺的贝壳很迷人，想把它作为纪念品保留下来。
3. 3.The ribbed shell was used by ancient sailors as a way to protect their boats from sharks.
   带刺的贝壳被古代水手用作保护船只免受鲨鱼攻击的一种方法。