pretracheal

例句：

1. 1. The surgery was performed on a patient with pretracheal cancer.
   该手术是为一个患有气管前癌的患者进行的。
2. 2. The study focused on the pretracheal region of the lungs.
   该研究关注肺部的气管前区域。
3. 3.Pretracheal infections are often more difficult to treat than other types of infections.
   气管前感染通常比其他类型的感染更难治疗。