the lynchpin of [noun]
常用于比喻义，指起核心作用的人或事物。
She is the lynchpin of the team.
她是团队的关键人物。
关键人物；核心；支柱
轮轴销；制轮楔；核心的支持与稳定来源；穿过车轴以固定车轮的销子；关键
a person or thing that is the central source of support or stability
核心的支持与稳定来源
a central cohesive source of support and stability
穿过车轴以固定车轮的销子
pin inserted through an axletree to hold a wheel on
The experienced manager is the lynchpin of our entire project, keeping everything on schedule.
这位经验丰富的经理是我们整个项目的关键人物，确保一切按计划进行。
用法提示：用作名词，比喻义，指关键人物。
Trust is the lynchpin that holds a successful partnership together.
信任是维系成功合作伙伴关系的关键。
用法提示：用作名词，比喻义，指核心要素。
He removed the rusty lynchpin from the axle to free the wheel.
他从车轴上取下生锈的轮轴销，以便卸下轮子。
用法提示：用作名词，本义，指固定车轮的销子。
常用于比喻义，指起核心作用的人或事物。
She is the lynchpin of the team.
她是团队的关键人物。
Trust is a lynchpin in any relationship.
信任是任何关系中的关键。
This policy serves as a lynchpin for economic growth.
这项政策是经济增长的关键。
grammar · medium
易错句子She lynchpins the department.
正确表达She is the lynchpin of the department.
Lynchpin 是名词，不能用作动词。正确用法是作为名词，通常与 of 连用，表示关键人物或事物。
grammar · medium
易错句子He is a lynchpin for the team.
正确表达He is a lynchpin of the team.
Lynchpin 后常接介词 of 表示所属关系，而非表示目的的 for。
发音拼写相近，但词性和含义完全不同。lynch是动词，指非法处决；lynchpin是名词，指关键人物或事物。
含义相近，但keystone原指建筑中的拱顶石，引申为关键要素；lynchpin更强调支撑和稳定的核心作用。
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