president
n.总统；会长；校长；行长
Many American Presidents served in Congress before they became President.
许多美国总统在成为总统之前都曾在国会任职。
congressman
n.国会议员，众议院议员(女性为congresswoman)
candidate
n.候选人(nominee)
He is the right candidate for presidency.
他是合适的总统候选人。
opponent
n.对手，反对者(rival)
As an opponent to the Bush administration, he showed his strong aversion to the Iraq war.
作为布什政府的反对者，他极其厌恶伊拉克战争。
advocator
n.辩护者
Mary is an advocator for equal treatment of woman and man in workplace.
玛丽是职场男女平等的倡导者。
auditor
n.审计员；旁听者
emperor
n.皇帝，君主(女皇帝为：empress)
monarch
n.君主(king, queen, ruler)
Mountain Tai is the monarch of all mountains in China to some extent.
泰山在一定程度上是中国百岳之王。
democrat
n.民主党人
republican
n.共和党人
To be a republican nominee, one must excel in all things concerning politics.
一个人要想成为共和党候选人，就必须在政治方面出类拔萃。
representative
n.代表
The representatives were all amazed by what had happened in the factory.
代表们都被工厂里发生的事情惊呆了。
delegate
n.代表(representative) v.委派…为代表(appoint, assign)
The general delegated his subordinate to perform a task.
将军委派他的部下执行一项任务。
dictator
n.独裁者(dictatorship, tyrant)
The emperor was described as a dictator by his people.
皇帝被他的子民描述为独裁者。