短语词组短语dyspnea exertion 运动性呼吸困难paroxysmal dyspnea exertion 活动时阵发性呼吸困难Dyspnea on exertion 活动时呼吸困难;呼吸困难;劳力性呼吸困难DOE dyspnea on exertion 劳力性呼吸困难 返回 exertion dyspnea