气管

例句：

1. 1. The doctor inserted a tube into his trachea to help him breathe.
   医生把一根管子插进他的气管里来帮助他呼吸。
2. 2. He was breathing through a tracheal tube for several days after the accident.
   事故发生后，他在气管里插了几天管子才能呼吸。
3. 3. The patient was given oxygen through a tracheal tube to help him recover.
   病人通过气管导管接受氧气治疗以帮助他恢复。