debar
词根词缀：
decelerate v. 减速
de 向下；降低，减少 + celer 速度 + ate 做，造成，使… → 减速
declass v. 降低社会地位
de 向下；降低，减少 + class 社会等级 → 降低社会地位
depopulation n. 人口减少
de 向下；降低，减少 + population 人口 → 人口减少
depress v. 压抑
de 向下；降低，减少 + press 压 →〔把心情〕向下压 → 压抑
devalue v. 贬值
de 向下；降低，减少 + value 价值 → 减少价值 → 贬值
deplane v. 下飞机
de 离开 + plane 飞机 → 下飞机
derail v. 使（火车）出轨
de 离开 + rail 铁轨 → 使（火车）出轨
dethrone v. 退位
de 离开 + throne 王位 → 退位
detrain v. 下火车
de 离开 + train 火车 → 下火车
数据来源：新东方英语词汇速记大全
相关例句：
Self-help behavior can debar the effect of breaking law if it accords with the legal request.
自助行为符合法定的构成要件，方可产生阻却违法的效果。
Could we be all assembled, our satisfaction would undoubtedly be more complete, but the absence of some is not to debar the others of amusement.
如果全家人都在，那肯定会高兴极了。不过，不能因为有的人不在家，就不让其他人组织娱乐活动。
If found guilty, she could be debarred from politics for seven years
如果罪名成立，她可能在7年内不得从政。
Being such as to debar questioning or doubts; indisputable.
无异议的如此以至使质疑或怀疑都没有必要的；不容争辩的。
This system adopted a combination form with string and sting support, and absorbed excellences of two types of support forms. They can debar second interference by using the same balance, and improve measuring precision.
该系统采用张线支撑与尾支撑的组合形式，分别吸收了两种支撑形式的优点，且张线支撑与尾支撑共用一个应变天平，排除了二次干扰，使测量精度提高。
Convictions for criminal offences might lead to the persons concerned being debarred from entering the teaching profession.
因刑事罪名被定罪的罪犯将可能被禁止从事教师职业。