1 sentence

1. 口音与鼻音的区别在于发音时气流是否经过鼻腔。

   kǒu​yīn yǔ bí​yīn de qū​bié zài​yú fā​yīn shí qì​liú shì​fǒu jīng​guò bí​qiāng.

   The difference between oral and nasal sounds lies in whether the airflow passes through the nasal cavity during pronunciation.

   Source: Dong Chinese Dictionary