守卫

例句：

1. 1. The soldiers were ordered to guard the border against intruders.
   士兵们被命令守卫边境，防止入侵者。
2. 2.The guards patrolled the area around the castle at night.
   守卫在城堡周围的地区巡逻。
3. 3.She was a brave guard who protected her home from burglars.
   她是一个勇敢的守卫，保护她的家免受窃贼的侵扰。