missing link
柯林斯词典
1. N-COUNT The missing link in a situation is the piece of information or evidence that you need in order to make your knowledge or understanding of something complete. 缺少的环节; 指为完全理解某事尚需知道的一则信息或证据[usu sing]
We're dealing with probably the biggest missing link in what we know about human evolution. 我们正在解决的可能是我们所知的人类进化过程中缺失最大的一环。
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missing link (missing links)
剑桥词典
- something that is necessary to complete a series or solve a problem
（一系列相关联事物中）必要的环节
Those documents provided the missing link , and the police were able to make an arrest soon after they discovered them. 这些文件提供了必要的证据，警察发现之后很快就实施了逮捕。
the missing link
an animal that no longer exists or might never have existed and is thought to explain how humans developed from apes
缺环（据推定存在于类人猿和人类之间的过渡动物） 返回 missing link