act of authority的用法和样例：
- Administrative guidance is not an act of authority in traditional opinion, the deep-seated reason of which is the heritance of analysis jurisprudence from Germany by Japan.
- This dreadful murder is surely the act of a madman.
- The leader must be a person of authority.
- His voice carries the ring of authority.
- Don't complain of anybody. This is an act of God.
- He was caught in the very act of espionage.