Near the mouth of the river is a sandy spit with low buildings decorated with oystershells and gnarly driftwood.
河口附近有一个沙地岬角，上面建着一些装饰了贝壳和多瘤漂木的低矮建筑物。
2
Several other materials can be used for liming purposes, such as, baked or burned oystershells, marl, basic slag, wood ashes, and cement industry by-products.
其它几种物质也可用来施用石灰，如？壳灰、灰、渣磷肥(性炉渣)草木灰和工业水泥的副产品等。
3
The Greeks, and then the Romans, improved the recipes for toothpaste by adding abrasives such as crushed bones and oystershells, which were used to clean debris from teeth.