a fortified camp的用法和样例：
- The first army, with which the Tsar was, was stationed in a fortified camp at Drissa.
- The act of scaling a fortified wall or rampart.
- After praying quietly he faced his difficulties with a fortified spirit.
- A fortified enclosure for artillery on a warship.
- A fortified place or a fortress.
- An opening in a fortified wall;an embrasure.