noun 下载 🔗分享 肺炎 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. " 奶奶重感冒后得了肺炎。 medicine disease microorganism virus biology organism anatomy 与AI对话词汇游戏阅读练习