其实，美军以招新兵为目标的游戏培训工具——“美国陆军”(America'sArmy)
O O O B-government I-government O O O O O O O O O O O O O O O O B-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game I-game