qín / xǐ / shǒu / hé / bǎo / chí / tōng / fēng / yǒu / zhù / yú / jiàng / dī / jiāo / chā / gǎn / rǎn / de / fēng / xiǎn勤洗手和保持通风有助于降低交叉感染的风险。Washing your hands frequently and keeping rooms ventilated helps reduce the risk of cross-infection.