Patent US 4,962,452

A machine translation system is capable of automatically and correctly analyzing a sentence having an inserted comment of a first language by means of a specific dictionary. The dictionary includes a first dictionary in accordance with which the inserted comment is extracted and analyzed and a second dictionary in accordance with which the other portion of the sentence than the inserted comments is analyzed. An analysis of the inserted comment and an analysis of the other portion are combined to obtain an analysis of the overall sentence. The translated sentence in the second language is produced in accordance with the analysis of the sentences which is combined. Furthermore, the translated inserted comment is displayed in a distinguishable manner. Specifically, a symbol for showing the inserted comment is added to the translated inserted comment. The translated sentence is displayed for including the inserted comment with the symbol.