2. The conversational sentence translation apparatus according to claim 1, wherein said semantic searcher selects a plurality of conversational sentence examples having highest degrees of semantic coincidence in the order of decreasing degree of semantic coincidence; said apparatus further comprises a selector for selecting, through a dialogue with a user, a conversational sentence example semantically closer to the input conversational sentence than any other, from among the plurality of conversational sentence examples selected by the semantic searcher; and said display means displays the conversational sentence example selected by the selector and the translation thereof.
2. The conversational sentence translation apparatus according to claim 1, wherein said semantic searcher selects a plurality of conversational sentence examples having highest degrees of semantic coincidence in the order of decreasing degree of semantic coincidence; said apparatus further comprises a selector for selecting, through a dialogue with a user, a conversational sentence example semantically closer to the input conversational sentence than any other, from among the plurality of conversational sentence examples selected by the semantic searcher; and said display means displays the conversational sentence example selected by the selector and the translation thereof. 19. The conversational sentence translation apparatus according to claim 2, wherein the information on a conversational sentence example registered in the bilingual database further includes supplementary information representing a situation under which the conversational sentence example is used; and the selector, during a dialogue with the user, presents the user a plurality of conversational sentence examples selected by the semantic searcher along with the supplementary information for those conversational sentence examples.