triad

noun

/ˈtraɪæd/

(formal) a group of three related people or things三人组合；三位一体；三件一套
- the classic triad of the visual arts: sculpture, architecture and painting视觉艺术的经典三部曲:雕塑、建筑和绘画
(also Triad)
a Chinese secret organization involved in criminal activity 三合会：参与犯罪活动的中国秘密组织

词源mid 16th cent.: from French triade, or via late Latin from Greek trias, triad-, from treis ‘three’. Sense 2 is a translation of Chinese San Ho Hui, literally ‘ three unite society’, i.e. ‘triple union society’, said to mean ‘the union of Heaven, Earth, and Man’.

词汇	triad
释义	triad noun /ˈtraɪæd/ /ˈtraɪæd/ (formal) a group of three related people or things三人组合；三位一体；三件一套 the classic triad of the visual arts: sculpture, architecture and painting视觉艺术的经典三部曲:雕塑、建筑和绘画 (also Triad) a Chinese secret organization involved in criminal activity 三合会：参与犯罪活动的中国秘密组织词源mid 16th cent.: from French triade, or via late Latin from Greek trias, triad-, from treis ‘three’. Sense 2 is a translation of Chinese San Ho Hui, literally ‘ three unite society’, i.e. ‘triple union society’, said to mean ‘the union of Heaven, Earth, and Man’.
随便看	know sth off pat know sth to your cost know/tell sb a thing or two (about sb/sth) know/tell somebody a thing or two (about somebody/something) know-the-ropes know the ropes know to your cost know what you’re talking about (know) what’s what (know) what’s what know which side your bread is buttered know your own mind know your stuff know your way around know–all know–all know–how know–it–all Knoxville knoxvilles knoxvillian knoxvillians knoxvillite knoxvillites knuckle