noun 다운로드 🔗공유 양치류 Any of a group of some twenty thousand species of vascular plants classified in the division Pteridophyta that lack seeds and reproduce by shedding spores to initiate an alternation of generations. Examples : "The forest floor was covered in lush green ferns. " 숲 바닥은 무성한 녹색 양치류로 덮여 있었다. plant biology nature organism environment science ecology AI와 채팅어휘 게임독해 연습