柯林斯詞典quadrilateral /?kw?dr??l?t?r?l/ 1. ADJ having or formed by four sides 有四邊的; 由四邊構(gòu)成的2. N a polygon having four sides. A complete quadrilateral consists of four lines and their six points of intersection 四邊形 (Also called tetragon) 返回 quadrilateral劍橋詞典a flat shape with four straight sides 四邊形 Squares and rectangles are quadrilaterals. 正方形和長(zhǎng)方形都是四邊形。 返回 quadrilateral