linchpin
n
1 pin passed through the end of an axle to keep the wheel in position 轮辖; 制轮楔.
2 (fig 比喻) person or thing that is vital to an organization, plan, etc (组织、 计画等中)关键性的人或事物
Controlling wages is the linchpin of the Government'spolicies. 控制工资是政府政策的关键.
🗣️ 情景例句
Did she say why she had to leave today?
她说了她为什么今天非走不可吗?
Where can I find a cheap coffee perk for my dorm room?
哪儿可以找到在我宿舍使用的廉价滤式咖啡壶呢?
I am an art student and I paint a lot of pictures.