短片脚本及视频下载软件有哪些免费

– Shortness of breath
– Chronic cough
– Chest pain
– Fatigue
– Frequent respiratory infections
– Wheezing or whistling sound when breathing
– Blue lips or fingertips
– Swelling in the ankles, feet, or legs
– Difficulty exercising or performing physical activities
– Rapid or irregular heartbeat