respiratory bronchiole

例句：

1. 1.The lungs are responsible for the respiratory bronchioles, which help to transport oxygen throughout the body.
   肺部负责呼吸细支气管，这些支气管有助于将氧气输送到全身。
2. 2. During sleep, the respiratory bronchioles dilate, allowing more air to flow through the lungs.
   在睡眠时，呼吸细支气管扩张，使更多的空气流经肺部。
3. 3.A patient with a chronic obstructive pulmonary disease may experience difficulty breathing due to narrowed or blocked respiratory bronchioles.
   患有慢性阻塞性肺疾病的人可能会因为狭窄或阻塞的呼吸细支气管而呼吸困难。