noun 다운로드 🔗공유 외골격 A hard outer structure that provides both structure and protection to creatures such as insects and Crustacea. Examples : "The discarded exoskeletons of cicadas clung to the tree bark in the park. " 매미의 버려진 외골격이 공원 안 나무 껍질에 붙어 있었다. animal biology organism anatomy structure insect AI와 채팅어휘 게임독해 연습