| Gb | Eng |
|---|---|
| 唾液是由口腔的唾液腺分泌出来的. | Saliva is secreted by glands in the mouth. |
| 我的口腔出现了溃疡。 | My mouth has an ulcer. |
| 开的发音时，舌头放低并放平，口腔敞开，正如bath一词中的a和father中的a发音一样时。用于元音发音 | Pronounced with the tongue placed low and flat and with the oral cavity wide open, like the a in bath when pronounced like the a in father. Used of vowels. |