Bronchi

例句：

1. 1. He had a severe cough that lasted for several days.
   他得了一次严重的咳嗽，持续了几天。
2. 2. The doctor advised him to stay away from smoke and avoid breathing in polluted air.
   医生建议他远离烟雾，避免吸入污染的空气。
3. 3.Bronchiectasis is a condition where the bronchi, or the tubes that carry air into the lungs, become enlarged and weakened.
   支气管扩张是一种状况，其中输送空气进入肺部的细管变得肿大和弱化。