rule the roost

含义

to be the person who makes the decisions in a group

在群体中拿主意、说了算.

例句

1. 1In our house, it's the cat that rules the roost; even the dog gets out of its way.
2. 2Gran ruled the roost at family dinners, and nobody argued with her seating plan.
3. 3Aisha is the youngest in the office, but she rules the roost: everyone does what she says.
4. 4Who rules the roost in your family? Who decides where you go on holiday?
5. 5When the new manager arrived, it was clear she would rule the roost; she rewrote every rota herself.

语法

只有 rule 变化形式：rules、ruling、ruled。the roost 固定不变。