Yīng / shēng / lì / quàn / bìng / rén / jiè / yān / ， / yǐ / miǎn / bìng / qíng / jìn / yí / bù / è / huà。

医生力劝病人戒烟，以免病情进一步恶化。

The doctor strongly urged the patient to quit smoking to prevent the condition from getting worse.