N-COUNT
特权；独有的权力；专利
If something is the prerogative of a particular person or group, it is a privilege or a power that only they have.
例句
Constitutional changes are exclusively the prerogative of the parliament...
修改宪法是议会独有的权力。
It is your prerogative to stop seeing that particular therapist and find another one.
你有权决定不再去看那个治疗师而另找一个。