16. The translation apparatus of claim 12 , wherein in the displaying, candidate sentence lists for correcting the errors of the displayed sentences of the first language according to an operation of the at least one button are displayed.
12. A translation method, comprising: generating sentences of a first language according to an operation input of previously translated sentences displayed on a screen, when an automatic translation function is activated; transmitting the sentences of the first language to a translation server and receiving sentences of a second language from the translation server; and displaying the received sentences of the second language along with the previously translated sentences, wherein in the displaying, at least one button for correcting errors of the displayed sentences of the first language by interaction with the user is displayed, wherein the sentences of the second language are translated sentences corresponding to the sentences of the first language.