upper respiratory

• 上呼吸道

upper respiratory的用法和样例：

例句

1. He had an infection in the upper respiratory tract.
   他上呼吸道感染。
2. In obstructive sleep apnea, the upper airway narrows, or collapses, during sleep.
   在阻塞性睡眠呼吸暂停中，睡眠期间上呼吸道狭窄或踏陷。