Kphrase next breath way infection

• 下呼吸道感染

Kphrase next breath way infection的用法和样例：

例句

1. He's suffering from an acute infection of the lower respiratory tract.
   他患有急性下呼吸道感染。
2. Respiratory syncytial virus and adenovirus are two causes of pediatric common lower respiratory tract infection, threatening the health of children.
   呼吸道合胞病毒和腺病毒是小儿常见的下呼吸道感染的两个病原，严重威胁小儿的健康。