| 释义 | the Pentagon noun only singular
 ADVANCED
 ■the building in Washington where the US Defense Department is based, or the US Defense Department itself 美国五角大楼;美国国防部
 •The Pentagon is aiming to cut US forces by over 25 per cent in the next five years.美国国防部计划在未来五年内裁军25%以上。 |