czar

1. N-COUNT/N-TITLE In former times, the czar was the king of Russia. 俄国沙皇

2. N-COUNT A particular kind of czar is a person who has been appointed by the government to deal with a particular problem that is affecting the country. 特使[supp N]

He promised to appoint an AIDS czar to deal with the disease. 他承诺任命一位艾滋病特使来对付这种疾病。