1. An electronic apparatus for translating one language into another in which selected words can be stored for review, said apparatus comprising: first memory means for storing words of a first language and words of a second language as a plurality of pairs; second memory means for storing selected ones of the words of said first language stored in said first memory means; first read out means including means for producing a first read out signal for causing reading out of a selected word of said first language stored in said first memory means; means connecting said first memory means and said second memory means; writing means including input means, connected to said connecting means, for producing a writing instruction, said connecting means being responsive to said writing instruction for enabling writing of said selected word read out from said first memory means into said second memory means; second read out means, connected to said second memory means, including means for producing a second read out signal for reading out a selected one of the words of said first language stored in said second memory means translation means including means for producing a translation signal for causing reading out from said first memory means a word of said second language corresponding to a word of said first language; visualizing means for visualizing said words of said first language caused to be read out by said first read out means, words of said first language read out by said second read out means, and words of said second language caused to be read out by said translation means, respectively; and control means connected to said first read out means, said second read out means, said translation means, said visualizing means, and said first memory and being responsive to generation of said first read out signal by said first read out means for reading out said selected word of said first language stored in said first memory means, and being responsive to generation of said translation signal by said translation means to find and read out from said first memory means the words of said second language corresponding to said selected word of said first language read out from said second memory means by said second read out means and visualized by said visualizing means.