seashell

1.Seashells lay thick on the beach.

厚厚地铺在滩上

2.Small seashells were once used as a primitive kind of money.

小壳曾经被用作简单的钱币。

3.A simple log sheet inside and a bottle of micro seashell for the first found.

里面有一个简单的logsheet和一瓶小壳给第一个发现者。