| 释义 | 
		 penta·gonBrE /ˈpentəɡən/NAmE /ˈpentəɡɑːn/ noun [C] (geometry 几何) a flat shape with five straight sides and five angles 五边形;五角形the Pentagon  [sing.] the building near Washington DC that is the  headquarters  of the US Department of Defense and the military leaders 五角大楼(指美国国防部)◆a spokesman for the Pentagon 美国国防部发言人 |