HSK 6
Tā de yáyín fāyán le, xūyào kàn yáyī.
His gums are inflamed; he needs to see a dentist.
HSK 7-9
Shuāyá shí yào qīngróu, bìmiǎn shānghài yáyín.
Brush gently to avoid damaging the gums.
HSK 7-9
Yáyín chūxiě kěnéng shì kǒuqiāng jiànkāng wèntí de xìnhào.
Bleeding gums may be a sign of oral health problems.
