| 词汇 | pentagon |
| 释义 | pentagon noun[ C ] uk /ˈpen.tə.ɡən/ us /-t̬ə.ɡɑːn/ a shape with five sides and five angles五边形，五角形 NUMAX3D/iStock/Getty Images Plus/GettyImages Geometrical shapes -cornered circularly congruently conic cuboid cylindrically lozenge orbicular ovally ovoid parallelogram polytope prism pyramid quadrilateral rectangle rectangular rhombus three-dimensional tubular the Pentagon noun uk /ˈpen.tə.ɡən/ us /ˈpen.t̬ə.ɡɑːn/ the building in Washington where the US Defense Department is based, or the US Defense Department itself: 美国五角大楼，美国国防部 The Pentagon is aiming to cut US forces by over 25 percent in the next five years.美国国防部计划在接下来的五年内裁军25%以上。 a spokesperson for the Pentagon These rumours have been denied by the Pentagon. Pentagon officials The president has just left the Pentagon. The prime minister will shortly be arriving at the Pentagon. International relations: United States politics & government anti-Republican battleground state bicameral blue state caucus confederacy gubernatorial homeland security House Committee impeach Independence Day joint resolution override republican secret service secretary Secretary of State the Articles of Confederation the GOP the Republican Party pentagon | American Dictionarypentagon noun[ C ] us/ˈpent·əˌɡɑn/ geometry a flat, five-sided shape with five angles Pentagon noun[ U ] us/ˈpent·əˌɡɑn/ the building where the US Defense Department is based, or the US Defense Department itself Examples of pentagonpentagon The resulting cells are all hexagons, except that the cells corresponding to the 12 vertices of the original icosahedron are pentagons. We may need to link extra cycles to the squares and pentagons in this construction to pack these cycles fully. As before, we shall attempt to pack some of the cycles as connected sequences of triangles, squares and pentagons. The idea is to pack some of the cycles as connected sequences of triangles, squares and pentagons in certain explicit constructions. The resulting mesh of hexagons and pentagons is nearly uniform, and it avoids the problems with coordinate poles described in the preceding subsection. We may have to link extra cycles to the squares and pentagons in the construction. This relationship does not hold for sides, chords and diameters in the pentagon. The position of reefs is shown by the three groupings of pentagons, individually located by interviewees, with greater consistency in location highlighted for the reefs closer to the community. However, each of these cycles is precisely a pentagon (since a 5 cannot be written together with a 3 or another 5), so they pack entirely too. I do not think it is a pentagon but it might have four sides. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Those atoms form a closed cage made up of 12 pentagons and 20 hexagons that fit together like the surface of a football. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is the pentagon design of semi-submersible. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In my constituency, there are some pentagon blocks — pentagon in shape rather than in intention—which have been successful and are used as warden-controlled old persons' accommodation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Pentagon economists acknowledge that steps could be taken to spend the existing military budget more efficiently. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is one of 14 known isohedral pentagon tilings. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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