noun🔗Share三角形 A polygon with three sides and three angles."The construction paper shape was a triangle. "那张彩色卡纸的形状是个三角形。mathfigureChat with AIVocabulary GamePractice Reading
noun🔗Share三角板 A set square."My geometry teacher used a triangle to demonstrate how to measure angles. "我的几何老师用三角板演示了如何测量角度。stationerymathChat with AIVocabulary GamePractice Reading
noun🔗Share三角铁 A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound."The music teacher brought out the triangle and demonstrated how to play it. "音乐老师拿出了三角铁，并示范了如何演奏它。musicutensilChat with AIVocabulary GamePractice Reading
noun🔗Share三角框 (cue sports) A triangular piece of equipment used for gathering the balls into the formation required by the game being played."The cue sports player carefully used the triangle to arrange the balls for the next game. "台球选手小心地用三角框将球摆放好，准备开始下一局。sportgameutensilChat with AIVocabulary GamePractice Reading
noun🔗Share三角恋，三角关系 A love triangle."Sarah's love triangle with Tom and David is making school difficult for her. "萨拉和汤姆、大卫的三角恋让她在学校里感到很吃力。familyChat with AIVocabulary GamePractice Reading
noun🔗Share三角关系，三角结构。 (systemics) The structure of systems composed with three interrelated objects."The triangle of my family – my mother, father, and me – has been under a lot of stress lately. "最近，我们家这个由我、我妈和我爸组成的三角关系一直承受着很大的压力。structuresystemmathChat with AIVocabulary GamePractice Reading
noun🔗Share三角板，三角尺 A draughtsman's square in the form of a right-angled triangle."The architect used a triangle to ensure the right angle in the corner of the new room. "建筑师用三角板来确保新房间角落的直角是精确的。stationerymathtechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share三角架, 笞刑架. A frame formed of three poles stuck in the ground and united at the top, to which people were bound when undergoing corporal punishment."The village elders used a triangle to punish the disobedient children. "村里的长者们用笞刑架来惩罚不听话的孩子。historylawChat with AIVocabulary GamePractice Reading
noun🔗Share燕尾蝶，三角箭尾蝶 Any of various large papilionid butterflies of the genus Graphium."The butterfly expert identified the large, colorful butterfly as a triangle. "蝴蝶专家鉴定出那只色彩艳丽的大蝴蝶，确认它是一只三角箭尾蝶。animalinsectChat with AIVocabulary GamePractice Reading
noun🔗Share三角线，三角形轨道。 A triangular formation of railway tracks, with a curve on at least one side."The train tracks formed a triangle, with a gentle curve on the right side. "铁路轨道形成了一个三角线，右侧有一段平缓的弧形弯道。technicalvehicletrafficstructureChat with AIVocabulary GamePractice Reading
