bronchioles

例句：

1. 1.The lungs are made up of several bronchioles that branch out from the trachea.
   肺部由许多从气管分支出来的支气管组成。
2. 2. Bronchioles are small airways that connect the trachea to the alveoli.
   支气管是连接气管和肺泡的小通道。
3. 3.The doctor performed a bronchoscopy to examine the patient's bronchioles.
   医生进行了支气管镜检查，以检查患者的支气管。