| 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 headquartersof 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 |