柯林斯詞典bronchus /?br??k?s/ 1. N either of the two main branches of the trachea, which contain cartilage within their walls 支氣管 返回 bronchus劍橋詞典one of the two tubes that branch from the trachea (= tube that carries air from the throat to the lungs ) and carry air into the lungs 支氣管 返回 bronchus