trigon

In ancient astrology, each trigon groups three signs of the same element.

在古代占星术中，每个三宫组把同一元素的三个星座归为一组。

Astrologers believed that a person born under a fire trigon had a warm and energetic nature.

占星师们相信，出生在火象三宫组下的人性格热情而充满活力。

The four trigons were named after the elements: earth, air, fire, and water.

这四个三宫组以元素命名：土、风、火和水。