1. An electronic dictionary apparatus comprising: a plurality of dictionary databases of different types; an additional search key; a display; example sentence search means for searching for example sentences including all of a plurality of search characters inputted by user operations from at least one of the plurality of dictionary databases, and for list-displaying searched respective example sentences on the display; list-display determination means for determining whether or not the additional search key is operated during the list display of the searched respective example sentences; search character input word order designation display means for displaying “&” at a tail of the plurality of inputted search characters and performing display for designating a search word order when it is determined that the additional search key is operated during the list display by the list-display determination means; search character word order example sentence display means for list-displaying example sentences on the display in accordance with inputted search characters and a designated word order when an additional search character is inputted and a word order is designated by user operations via the search character input word order designation display means; example sentence translation display means for displaying a translation of an entire example sentence selected in accordance with a decision operation by the user when it is determined that the additional search key is not operated during the list display by the list-display determination means; explanatory information search means for searching for a vocabulary entry corresponding to search characters inputted by the user operations from at least one of the plurality of dictionary databases, and for displaying explanatory information about the vocabulary entry on the display; explanatory display determination means for determining whether the additional search key is operated while the explanatory information about the vocabulary entry is displayed on the display by the explanatory information search means; and additional search means for continuing to display the explanatory information about the vocabulary entry on the display and for searching for another vocabulary entry when it is determined that the additional search key is operated while the explanatory information on the vocabulary entry is displayed on the display by the explanatory information search means.
1. An electronic dictionary apparatus comprising: a plurality of dictionary databases of different types; an additional search key; a display; example sentence search means for searching for example sentences including all of a plurality of search characters inputted by user operations from at least one of the plurality of dictionary databases, and for list-displaying searched respective example sentences on the display; list-display determination means for determining whether or not the additional search key is operated during the list display of the searched respective example sentences; search character input word order designation display means for displaying “&” at a tail of the plurality of inputted search characters and performing display for designating a search word order when it is determined that the additional search key is operated during the list display by the list-display determination means; search character word order example sentence display means for list-displaying example sentences on the display in accordance with inputted search characters and a designated word order when an additional search character is inputted and a word order is designated by user operations via the search character input word order designation display means; example sentence translation display means for displaying a translation of an entire example sentence selected in accordance with a decision operation by the user when it is determined that the additional search key is not operated during the list display by the list-display determination means; explanatory information search means for searching for a vocabulary entry corresponding to search characters inputted by the user operations from at least one of the plurality of dictionary databases, and for displaying explanatory information about the vocabulary entry on the display; explanatory display determination means for determining whether the additional search key is operated while the explanatory information about the vocabulary entry is displayed on the display by the explanatory information search means; and additional search means for continuing to display the explanatory information about the vocabulary entry on the display and for searching for another vocabulary entry when it is determined that the additional search key is operated while the explanatory information on the vocabulary entry is displayed on the display by the explanatory information search means. 8. The electronic dictionary apparatus according to claim 1 , wherein: the example sentence search means searches for the example sentences by switching the dictionary database from which the example sentences including the search characters inputted by the user operations are searched in accordance with the user operation, and list-displays the searched respective example sentences from the dictionary database on the display.