单词missing link
n.: （理解问题或使事物完整的）必要的环节
网络: 缺环；缺失的一环；缺少的一环
（理解问题或使事物完整的）必要的环节，不可缺少的一环:
something, such as a piece of information, that is necessary for sb to be able to understand a problem or in order to make sth complete
缺环（推想中从类人猿发展到人类之间的过渡动物）:
an animal similar to humans that was once thought to exist at the time that apes were developing into humans
I contend that I"m just a piece of messed-up code, and our inability to have kids proves that I"m not going to be the Missing Link.
我声称我就是一块乱七八糟的代码，并且，我们不能有孩子并且我也不是在人和猿类之间过渡的那类人种。
So far, there is no evidence of any fossil record for so-called missing link.
但到迄今为止，找不到一块化石证据来证明有缺失链这回事。
Scientists believe they have found a "missing link" in the evolution of the virus that causes Aids.
科学家们相信他们已经找到了引起艾滋病的病毒其演变进程中“缺失的环节”。
A palaeontologist at the British Museum assembled the bones and believed that they represented the "missing link" between humans and apes.
大英博物馆的古生物学家，将这些骨头装配了起来，并相信这些骨头反映了人类与猿人之间“迷失的一环”。
The fossil received blanket coverage around the world and newspapers hailed her as the "missing link" between humans and animals.
世界各地对该化石进行了铺天盖地的报道，报纸称其为人类和动物之间“失落的一环”。
This step was taken by Italian biologists, who provided the last missing link in man"s search for the cause of malaria.
意大利生物学家完成了这一步骤，从而填补了人类探索虐疾病因所缺少的最后一个环节。
For China"s people and its trading partners, consumption has long been the missing link in an otherwise vibrant economy.
对于中国人民和其贸易伙伴来说，消费一直是生机勃勃的经济中缺少的一环。
I"m going to come back to this perhaps missing link, literature, in a minute.
我很快就会折回来讲解，这个缺失的一环，文学。
The discovery of a "missing link" between man and apes could revolutionise our understanding of how we evolved, scientists say.
科学家最近发现了人和猿之间一个“丢失的联系”，可以彻底改变我们对进化的理解。
This scientific discovery is probably the most important of the century so far as it really is the missing link between humans and apes.
这一科学发现有可能是迄今为止本世纪最重要的发现，因为它千真万确证明人与猿之间那个缺失的环节。