Linchpin
01
销, 轴
pin inserted through an axletree to hold a wheel on
02
关键, 关键元素
a crucial element that holds something together or provides stability and support
例子
The linchpin of the team's defense, the goalkeeper made critical saves to secure victory.
球队防守的关键，守门员做出了关键的扑救以确保胜利。
Her innovative ideas served as the linchpin of the company's successful marketing strategy.
她的创新想法是公司成功营销策略的关键。
