noun 다운로드 🔗공유 개구리밥 Any of several reduced floating aquatic plants in the subfamily Lemnoideae of the family Araceae. Examples : "The pond was covered in a thick green layer of duckweed. " 연못은 두꺼운 녹색 개구리밥 층으로 덮여 있었다. plant biology ecology environment nature AI와 채팅어휘 게임독해 연습