呼吸道的英文：
pneogaster

The respiratory tract is an important portal of entry for respiratory viruses
呼吸道是呼吸道病毒入侵的重要门户。

viral respiratory infection
病毒性呼吸道感染

The secretory system of the respiratory tract is probably the most appreciated
呼吸道的分泌系统可能是最先被意识到的。

The infection may lead to respiratory problems.
感染可能会引起呼吸道问题。

This infection may lead to respiratory complications.
这个感染可能导致呼吸道综合症。

Influenza( or flu or grippe )：Acute viral infection of the upper or lower respiratory tract.
流行性感冒:一种上呼吸道或下呼吸道的急性病毒感染。

A is for airway. We must make sure that a person’s airway is open and it is easy to breathe .
A表示呼吸道。我们必须确保那人的呼吸道是畅通的，呼吸不困难。

Acute sinusitis is usually initiated by an acute respiratory tract infection of viral etiology.
急性鼻窦炎常常是由病毒性病因的急性呼吸道感染而发生。

A semisynthetic analogue of cephalosporin used especially in the treatment of respiratory and urinary tract infections.
头孢氨苄一种半人工合成的头孢菌素代用物，尤用于治疗呼吸道和尿道感染

This is a way of placing a body so that the airway is clear and it is easy to breathe. Here is how it is done
这是使呼吸道畅通，便于呼吸的身体放置方法。应该这样做