sober的词根分析是
1/解析
se 分开 + ebrius 喝醉 -> 使人从喝醉的状态分开 -> sober 使清醒
2/联想
desegregation n. 废除种族隔离
inseparable adj. 形影不离的;分不开的
segregate v. 使隔离;使分离;在…实行种族隔离
sobriety n. 清醒;严肃
3/例句
The man poured a bucket of cold water on his head to sober him up.
这个人往他头上浇了一桶冷水来让他醒酒。