noun🔗Share外骨骼,外壳。 A hard outer structure that provides both structure and protection to creatures such as insects and Crustacea."The discarded exoskeletons of cicadas clung to the tree bark in the park. "公园里,蝉蜕下的外壳紧紧地附着在树皮上。animalbiologyorganismanatomystructureinsectChat with AIVocabulary GamePractice Reading