velopharyngeal closure

例句：

1. 1. The patient's condition worsened after the surgery, requiring urgent velopharyngeal closure.
   手术后，患者的病情恶化，需要紧急进行咽闭合。
2. 2.During sleep, the velopharyngeal closure helps to protect the airway from foreign objects.
   睡眠时，咽闭合有助于保护呼吸道免受异物侵害。
3. 3.In some cases, a surgical procedure may be necessary to maintain proper velopharyngeal closure.
   在某些情况下，可能需要手术来维持适当的咽闭合。