英语语法分析

Objective To investigate the effect of tracheobronchomalacia (TBM) on early recovery after surgical repair for different types of congestive congenital heart disease (CHD).

目的 探讨气管支气管软化（TBM）对不同类型充血型先天性心脏病（CHD）患儿术后早期恢复的影响。