clam seal

例句：

1. 1. The clam seal is a popular seafood dish in the region.
   蛤蜊封是该地区受欢迎的海鲜菜肴。
2. 2.The clam seal was used to protect the fragile shells of the clams.
   蛤蜊封被用来保护脆弱的蛤蜊壳。
3. 3.The clam seal was a symbol of the region's rich seafood resources.
   蛤蜊封是该地区丰富海鲜资源的象征。