Lukegao1
创建页面，内容为“ Colds are a common illness that is caused by a viral infection of the upper respiratory system. While there is no surefire way to completely avoid getting a cold, there are a number of things you can do to reduce your risk of catching one. Here are some tips to help you avoid colds: 1. Wash your hands frequently with soap and water, especially before eating or touching your face. 2. Avoid close contact with people who have colds or flu-like symptoms. 3. Co…”