dry rales

例句：

1. 1. He had a dry rales in his chest when he woke up this morning.
   他今天早上醒来时，他的胸部有干咳声。
2. 2.The doctor said that she needed to rest and avoid dry rales.
   医生说她需要休息，避免干咳。
3. 3. During the cold season, people often have dry rales due to the dry air.
   在寒冷的季节，人们常常因为干燥的空气而出现干咳。