英语语法分析

To explore an effective therapy for treating bronchiolitis .

目的探讨治疗毛细支气管炎的有效方法。

Objective to explore the factors affecting severity of infants with bronchiolitis in hospital.

目的探讨影响毛细支气管炎患儿临床严重程度的相关因素。

Objective To investigate the clinical effect of oxygen-drived inhalation salbutamol on bronchiolitis.

目的：观察氧启动雾化吸入沙丁胺醇治疗细支气管炎的临床价值。