n.三角形；三人一组；三角铁；三角板 变形： 复数：triangles 双语释义：n.(名词)[C]三角形; 三角形物体 geometric figure with three straight sides and three angles; thing shaped like this[C]三人一组; 三角关系 situation involving three people, ideas, opinions, etc.英英释义： triangle[ 'traiæŋɡl ]n.a three-sided