covered structure

• 覆盖结构

covered structure的用法和样例：

例句

1. A protective covering, structure, or organ of an animal or a plant, such as teeth, claws, thorns, or the shell of a turtle.
   防御器官动物或植物的防护层，结构或器官，如牙齿，爪子，荆棘或乌龟的壳