bronchial branches

例句：

1. 1.The lungs have bronchial branches that carry air to the rest of the body.
   肺部有支气管分支，将空气输送到身体的其他部位。
2. 2. During a cold, the bronchial branches can become congested and narrowed.
   感冒时，支气管分支可能会变得充血和狭窄。
3. 3.Bronchial branches are responsible for carrying oxygenated blood back to the heart.
   支气管分支负责将氧气丰富的血液送回心脏。