pharyngeal cavity

例句：

1. 1. The doctor performed a throat examination to diagnose the patient's condition.
   医生进行了喉部检查以诊断病人的状况。
2. 2.During sleep, the pharyngeal cavity is filled with mucus and blood, which helps to protect the throat from infection.
   在睡眠期间，咽腔被黏液和血液充满，这有助于保护喉咙免受感染。
3. 3. The pharyngeal cavity plays an important role in swallowing and speech.
   咽腔在吞咽和说话中起着重要作用。