1. The students drew diagonals in the geometric shapes.
学生们在几何图形中画出了对角线。

2. The design uses several diagonals to create a modern look.
这个设计使用了几条对角线来创造现代感。

3. The teacher explained how diagonals work in a square.
老师解释了正方形中对角线的作用。

A: How many diagonals does this shape have?
A：这个图形有多少条对角线？

B: It has two diagonals crossing in the center.
B：它有两条在中心相交的对角线。

1) 数学中连接多边形两个非相邻顶点的线段

2) 表示从一个角到相对角的方向

3) 可用于描述设计、图案或排列中的斜线结构

1. 对角线（diagonal的复数形式）。

e.g.The diagonals of a rectangle are equal in length.
矩形的两条对角线长度相等。

2. 对角方向上的线条或排列。

e.g.The artist added diagonals to the painting.
艺术家在画作中加入了斜线元素。

noun

1. Lines that connect opposite corners of a shape, or things arranged in a diagonal direction.

Synonym: slants, diagonal lines, cross lines