a fixed point supporting something that turns or balances
关键人物；枢纽
the central or most important person or thing in a situation
The former guerrilla leader has become the pivot on which the country's emerging political stability turns/revolves(= it depends on him).前游击队领导人成了决定该国政治稳定与否的关键人物。
pivot
verbuk/ˈpɪv.ət/us/ˈpɪv.ət/-tt-
(TURN)
[ I or T ]转动;扭曲
to turn or twist
She pivots her left foot.她扭了左脚。
He pivoted on his heels and headed out.他脚跟一转，向外走去。
Future deals will pivot on(= depend on) easing commercial conflicts.未来的协议将取决于疏缓商业冲突。