triad society

基本解释

Wu told him that the Triad Society was gradually extending its influence in the northern provinces. Lodges had now been opened up in every major province of China.
吴六奇说道：“天地会的势力已逐步扩展到北方诸省，各个大省之中都已开了香堂。”
bhygz2008.blog.163.com
Although the dark triad personality type appears to be universal in human society, having been identified in 57 countries, it does exact real costs – otherwise bad boys would be more common.
虽然黑暗人格在人类社会中广泛存在，已经在57个国家得到确认，不过那可不是易如反掌轻松惬意的——否则坏男孩们就能满天飞了。
bbs.internet.org.cn
Henry Lefebvre's spatial triad holds that representation of space controls the spatial practice of the members in society and that representation of space is conceived by planners of the society.
列斐伏尔的“空间三一论”强调“空间表征”规训社会成员的“空间实践”，而“空间表征”主要特征为其构想性，构想主体当然系空间规划者。