noun 下载 🔗分享 关节炎 Inflammation of a joint or joints causing pain and/or disability, swelling and stiffness, and due to various causes such as infection, trauma, degenerative changes or metabolic disorders. Examples : "My grandmother's arthritis makes it difficult for her to walk to the grocery store. " 我奶奶有关节炎,所以她很难走到杂货店去。 medicine disease body physiology anatomy 与AI对话词汇游戏阅读练习