sobriety
词根词缀：
anxiety n. 焦虑
anxious 担忧的 + ety 性质，状态 → 焦虑
dubiety n. 怀疑
dubious 怀疑的 + ety 性质，状态 → 怀疑
gaiety n. 快乐
gay 快乐的 + ety 性质，状态 → 快乐
naivety n. 天真
naive 天真的 + ety 性质，状态 → 天真
propriety n. 适合，得体
proper 适合的 + ety 性质，状态 → 适合，得体
satiety n. 饱足，厌腻
sati 足够，饱足 + ety 性质，状态 → 饱足，厌腻
sobriety n. 头脑清醒
sober 头脑清醒的 + ety 性质，状态 → 头脑清醒
subtlety n. 微妙；狡猾
subtle 微妙的；狡猾的 + ety 性质，状态 → 微妙；狡猾
variety n. 变化，多样化
vari 变化 + ety 性质，状态 → 变化，多样化
数据来源：新东方英语词汇速记大全
相关例句：
The bank expects its retail banking staff to wear suits in dark gray, black or navy blue, since these colors'symbolize competence, formalism and sobriety.
瑞士银行希望其零售银行业务员工穿着深灰色、黑色或海军蓝西装，因为这些颜色“代表能力、庄重和冷静”。
See, when I think of my sobriety, I don't think about wine.
你瞧，只要我想到自己在戒酒，我就不会考虑喝酒。
Sobriety is one of the Ghost Festival, demons, nature is capable of warding off evil into willow.
清明是鬼节之一，百鬼出没，插柳自然是辟邪了。
A conscientious man noted for his sobriety.
以认真审慎著称的男子。
Wise after the calamity, central bankers, market regulators and the rest are already saying what are needed are tighter rules, closer oversight and a premium on sobriety.
灾难发生后，央行官员、市场监管者以及其他管理者变得聪明了，他们表示，现在需要的是更加严格的制度、更加紧密的监督和对保持清醒的奖励。
He recounts the decency and regularity of former times, and celebrates the discipline and sobriety of the age in which his youth was passed.
他列举了过去的礼仪和程序，赞美他年轻时经过的纪律严明的时代。