四边形的英文：
quadrangle
quadrilateral

参考例句：

The base of the triangle coincides with one side of the square.
这三角形的底边与这四边形的一边相重合。

A trapezoid is a tetragon with two parallel sides.
梯形是具有两平行边的四边形。

The kite is a tetragon with one line of symmetry.
风筝是个有一条对称线的四边形。

A kite is a quadrilateral with one line of symmetry.
风筝是个有一条对称线的四边形。

Quad Patch
方形面片;方块格栅平面;四边形面片

A light triangular or quadrilateral sail set over a gaff.
斜桁中帆下缘张在斜桁上的三角形或四边形轻帆

A plane figure consisting of four points, no three of which are collinear, connected by straight lines.
四边形，四角形由四个角组成的平面图形，没有任何三个点共线，通过直线相连接。

A prismatoid having polygons with the same number of sides as bases,and faces that are parallelograms or trapezoids.
平截头棱椎体以边数相同的平面多边形为底面的，各侧面为平行四边形或不规则四边形的拟柱体

quadrangle是什么意思：
n. 四角形,四边形,中院

Shouts from the open window startling evening in the quadrangle
从敞开着的窗户传出的喧嚷声，惊动了方院的暮色。

We walked all over the campus from the quadrangle to the athletic grounds
我们从方庭到操场，走遍了整个校园。

quadrilateral是什么意思：
a. 四边形,四边地,四角地

A light triangular or quadrilateral sail set over a gaff.
斜桁中帆下缘张在斜桁上的三角形或四边形轻帆

A quadrilateral or triangular sail set from the after part of the mainmast on a fore-and-aft rigged vessel.
主帆在船头船尾都装有帆的帆船上装在桅后部的呈四角形或三角形的帆

A quadrilateral or triangular sail set from the after part of the mainmast on a fore - and - aft rigged vessel.
主帆在船头船尾都装有帆的帆船上装在桅后部的呈四角形或三角形的帆