noun 다운로드 🔗공유 폐렴 An acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants. Examples : "Grandmother developed pneumonia after a bad cold. " 할머니는 심한 감기에 걸린 후 폐렴에 걸렸다. medicine disease microorganism virus biology organism anatomy AI와 채팅어휘 게임독해 연습