yī / shēng / jiàn / yì / wǒ / hǎo / hāo / qīng / jié / jiù / chǐ / bì / miǎn / shí / wù / cán / liú医生建议我好好清洁臼齿,避免食物残留。The dentist advised me to clean my molars carefully to prevent food from getting stuck.