三角形的一条边被延长了。

One side of the triangle was produced.

在圆的直径上画一等边三角形。

On the diameter of a circle an equilateral triangle is described.

几个重叠的三角形所形成的边界。

A border of superposed triangles.

他陷于三角情感中。

He was caught in the middle of the emotional triangle.

比基尼式泳装很小，就三片三角形的钩编棉织品。

The bikini is tiny, three triangles of cotton crochet.