[例句]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。
2、hexagon 英[ˈheksəɡən] 美[ˈheksəɡɑːn]
n. 六边形; 六角形;
[例句]Knew the area of hexagon, can change cipher out a.
知道了正六边形的面积,就可以换算出a了。
3、heptagon 英[ˈheptəɡən] 美[ˈheptəɡɑːn]
n. 七边形; 七角形;
[例句]These results show that the different arranges of pentagon and heptagon along the axi have obvious difference on electrical properties of carbon Nanotube.
结果表明:五边形和七边形在碳管中分布的不同对碳管电学性能的影响明显不同。
4、octagon 英[ˈɒktəɡən] 美[ˈɑːktəɡɑːn]
n. 八边形; 八角形;
[例句]They are related to billiards on tables that are not rectangular but still polygonal, like the regular octagon.