gāo / sù / lù / shàng / yào / bǎo / chí / ān / quán / chē / jù / fáng / zhǐ / zhuī / wěi / shì / gù / .

高速路上要保持安全车距，防止追尾事故。

You need to maintain a safe following distance on the highway to prevent rear-end collisions.