A plenipotentiary is a person who has full power to make decisions or take action on behalf of their government, especially in a foreign country. 全权代表; 全权大使
adjective [原级]全权代表的;有全权的
Information to be Minister Plenipotentiary in the end to terrorism. 资讯以全权公使要将反恐进行到底。
noun [抽象名词]全权代表;全权大使
...the U.S. Plenipotentiary to the UN conference. ...美国在联合国大会的全权代表。