airways obstruction

• 气道阻塞

airways obstruction的用法和样例：

例句

1. Most often this is due to extrahepatic biliary tract obstruction.
   这通常由肝外胆道阻塞所引起。
2. Prepyloric antral webs are relatively uncommon as a cause for gastrointestinal obstruction in infants and children.
   摘要在婴幼儿肠胃道阻塞的原因中，先天性幽门前窦蹼为一相当罕见之原因。