| 单词 | denticles |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔shagreen〕The rough hide of a shark or ray, covered with numerous bony denticles and used as an abrasive and as leather.鲨革：鲨鱼或鲂鱼的粗糙的外皮，覆有许多骨状小齿，用作研磨物和皮革美国传统〔tooth〕A similar structure in invertebrates, such as one of the pointed denticles or ridges on the exoskeleton of an arthropod or the shell of a mollusk.（其他动物的）齿：非脊椎动物的类似器官，例如节肢动物的外骨骼或软体动物的外壳上的尖锐小齿或小突起美国传统 |
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