nasal

鼻塞是流感和普通感冒的常见症状。

___Nasal congestion is a common symptom of the flu and the common cold.

他感冒时说话带上了鼻音。

His voice became ___nasal when he had a cold.

英语中的'ng'音是一个鼻音。

The 'ng' sound in English is a ___nasal consonant.