(每日一词) deviance

 Deviance  /ˈdiː.vi.əns/ n. 偏常，偏离，异常

Meaning: the quality of not being usual, and of being generally considered to be unacceptable 

前缀: de-向下, 比如decrease 减少, 降低

词根: vi- 表示way 道路

后缀: -ance 名词后缀

e.g. The teenager's deviance from societal norms, such as skipping school and engaging in vandalism(蓄意破坏), has led to his parents seeking professional help. 这名青少年偏离社会规范的行为，比如逃学和进行破坏公物的活动，已经导致他的父母寻求专业的帮助。