1、Bronchotomy is a surgical procedure in which an incision is made in the bronchus to allow drainage or remove an obstruction.
支气管切开术是一种外科手术，通过在支气管上切开一个口来实现引流或清除阻塞物质。

2、Bronchotomy may be necessary in severe cases of lung infection or when other treatments have failed.
在严重的肺部感染或其他治疗方法失败的情况下，可能需要进行支气管切开术。