missing link

US 
UK 
  • n.(理解问题或使事物完整的)必要的环节
  • Web缺环;缺失的一环;缺少的一环
Plural Form:missing links  
missing link
n.
1.
[c]
(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
2.
[sing]
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

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard