linchpin
英 ['lɪn(t)ʃpɪn]
美['lɪntʃpɪn]
- n. 关键（等于lynchpin）；制轮楔；轮辖
英英释意
- 1. a central cohesive source of support and stability;
- "faith is his anchor"
- "the keystone of campaign reform was the ban on soft money"
- "he is the linchpin of this firm"
- 2. pin inserted through an axletree to hold a wheel on