单词 | linchpin |
释义 | Word Frequency linchpin or lynchpin (ˈlɪntʃˌpɪn) noun 1. a pin placed transversely through an axle to keep a wheel in position 2. a person or thing regarded as an essential or coordinating element the linchpin of the company Word origin C14 lynspin, from Old English lynis |
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