And in fact, if you go into a Christian church to this day, you'll often see above the altar an equilateral triangle, which is the oldest symbol for the Trinity.

事实上， 即便在今天走进座基督教堂，你常会在祭坛上方看到个等边角形，这是最古老的象征。

In the first course, there was a shoulder of mutton cut into an equilateral triangle, a piece of beef into a rhomboides, and a pudding into a cycloid.

道菜里，有块切成等边角形的羊肉，块切成菱形的牛肉，还有块做成旋轮线形状的布丁。

Well, that's for when you're doing kind of, you know, equilateral triangles or whatever else that you can draw.

那么，这适用于你绘制等边角形或其他你能画出的图形时。

Behind the old man is a geometric shape, containing several equilateral triangles within a conical shape.

老人身后是个几何形状，圆锥形包含几个等边角形。