名詞 pentagon:

1. a government building with five sides that serves as the headquarters of the United States Department of Defense
2. the United States military establishment
3. a five-sided polygon

1. But the judge had no stomach for bureaucratic infighting(particularly with the Pentagon, which controls most of his intelligence budget plus its own) and not much feel for how to fit secret information into policy debates.
   可是法官無意參與政府內(nèi)斗(尤其不愿與國防部內(nèi)斗。國防部控制自己的預(yù)算，也控制著他的大部分情報(bào)預(yù)算), 同時(shí)他也不甚清楚如何把機(jī)密情報(bào)扯進(jìn)政策辯論。
2. The manufacturers appear to have underbid the contracts by a wider margin than usual. Costs escalated beyond all expectations. And few were privy to the problems because the program was financed in the secret part of the Pentagon budget.
   廠家對合同投的標(biāo)似乎較一般低得太多。成本節(jié)節(jié)升高，超出任何人的預(yù)料。由于該計(jì)劃系五角大樓秘密預(yù)算所支付，很少人知悉問題的同情。

pen.ta.gon

n.（名詞）
A polygon having five sides and five interior angles.
五邊形：有五條邊和五個(gè)內(nèi)角的多邊形
Pentagon The United States military establishment. Used withthe.
Pentagon 五角大樓：美國軍事建筑。和the 連用

來源：
Late Latin pentagônum
后期拉丁語 pentagônum
from Greek pentagônon
源自 希臘語 pentagônon
penta- [penta-]
penta- [前綴，表.五….]
-gônon [-gon]
-gônon [后綴，表.角.]

【引伸】
pentag.onal
pentag.onally
adv.（副詞）