Question

Pentagon n.五边形Pentagon:五角大楼（美国国防部）. (1) 美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。(2) 美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。 This is a word you're most likely to learn in math class when studying geometry: a pentagon is a polygon that has five sides. There are many words for shapes that indicate their specific number of sides, such as octagon: a polygon with eight sides. The root penta means "five," which is why a pentagram has five points. You may have heard of the Pentagon, which is the center of the U.S. military in Washington D.C. It has this name because the building has five sides.

Accepted Answer

英 ['pentəɡən] 美 ['pentəɡɑːn] (1) DOD of America is a pentagonal building, which is called Pentagon.(2) The office block of U.S.A defense is a pentagonal buliding,ia named pentagon. A pentagon is a five-sided polygon: it has one more side than a square. 1[N-PROPER 专有名词]五角大楼（美国国防部办公大楼）；美国国防部 The Pentagon is the main building of the US Defense Department, in Washington. The US Defense Department is often referred to as the Pentagon .   [the N]...a news conference at the Pentagon...在五角大楼召开的记者招待会The Pentagon says bad weather is hampering the allied air raids...五角大楼称恶劣天气妨碍联合空袭。A Pentagon spokesman refused to comment.美国国防部发言人拒绝评论。

英语单词	Pentagon
英美音标	英 ['pentəɡən] 美 ['pentəɡɑːn]
中文释义	n.五边形 Pentagon:五角大楼（美国国防部）.
英语例句	(1) DOD of America is a pentagonal building, which is called Pentagon. (2) The office block of U.S.A defense is a pentagonal buliding,ia named pentagon.
中文例句	(1) 美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。 (2) 美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。
vocabulary简明	A pentagon is a five-sided polygon: it has one more side than a square.
vocabulary扩展	This is a word you're most likely to learn in math class when studying geometry: a pentagon is a polygon that has five sides. There are many words for shapes that indicate their specific number of sides, such as octagon: a polygon with eight sides. The root penta means "five," which is why a pentagram has five points. You may have heard of the Pentagon, which is the center of the U.S. military in Washington D.C. It has this name because the building has five sides.
柯林斯解释	1 [N-PROPER 专有名词]五角大楼（美国国防部办公大楼）；美国国防部 The Pentagon is the main building of the US Defense Department, in Washington. The US Defense Department is often referred to as the Pentagon . [the N] ...a news conference at the Pentagon... 在五角大楼召开的记者招待会 The Pentagon says bad weather is hampering the allied air raids... 五角大楼称恶劣天气妨碍联合空袭。 A Pentagon spokesman refused to comment. 美国国防部发言人拒绝评论。

Pentagon Defense Sides Pentagonal 美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼 Polygon Building 英