guides and guards

例句：

1. 1. The guides and guards were responsible for the safety of the guests.
   向导和守卫负责客人的安全。
2. 2. The guards were vigilant in their duties to ensure the security of the building.
   守卫们警惕地履行着他们的职责，确保大楼的安全。
3. 3.The guides and guards provided information about the city's history and landmarks.
   向导和守卫提供了关于城市历史和地标的信息。