| 单词 | pentagon |
| 释义 | pentagon n. 1. a plane figure with five sides and angles. 2. (the Pentagon) a the pentagonal Washington headquarters of the US defence forces. b the leaders of the US defence forces. Derivatives pentagonal adj. Etymology: F pentagone or f. LL pentagonus f. Gk pentagonon (as PENTA-, -GON) |
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