柯林斯詞典bronchiole /?br??k????l/ 1. N any of the smallest bronchial tubes, usually ending in alveoli 細支氣琯 返回 bronchiole劍橋詞典in the lungs , one of the very small tubes that branch out from the bronchi and connect to the alveoli (= little air bags ) 細支氣琯 返回 bronchiole