hù / shi / měi / tiān / qīng / jié / shāng / kǒu / fáng / zhǐ / mǐ / lì / zǔ / zhī / shòu / dào / gǎn / rǎn护士每天清洁伤口,防止米粒组织受到感染。The nurse cleans the wound every day to prevent the granulation tissue from becoming infected.