tsar
noun [ C ] mainly UK (also tzar); (US usually czar) uk/zɑːr/ us/zɑːr/
(RULER)
（1917年以前俄国的）沙皇
(until 1917) the male Russian ruler
Tsar Nicholas I 沙皇尼古拉一世
(OFFICIAL)
特派官员
a person who has been given special powers by the government to deal with a particular matter
The government has appointed a drugs tsar to coordinate the fight against drug abuse. 政府任命了一位缉毒特派员来协调禁毒战。
(LEADER)
（商界或政界的）要人
a powerful person in business or politics
a group of publishing tsars 一群出版界要人