7. The dialogue supporting apparatus according to claim 2 , wherein a type of the characteristic, which is a basis for the determination of the output time by said output time determination unit, is a change of topic, and the output time is determined to be an initial value so that the translation time is of a standard length in the case where, according to a result of the analysis, a characteristic indicating a change of topic is included in the accepted utterance.
2. The dialogue supporting apparatus according to claim 1 , wherein said input accepting unit includes: a first input accepting unit operable to accept, as an input, an utterance of a first user which is in a first language; and a second input accepting unit operable to accept, as an input, an utterance of a second user which is in a second language, said translation processing unit includes: a first translation processing unit operable to translate the utterance of the first user into the second language, and to output first translated utterance information which is acquired through the translation; and a second translation processing unit operable to translate the utterance of the second user into the first language, and to output second translated utterance information which is acquired through the translation, said output notification unit includes: a first output notification unit operable to notify the outputted first translated utterance information to the second user; and a second output notification unit operable to notify the outputted second translated utterance information to the first user, said output time determination unit is operable to analyze whether or not the characteristic information is included in the utterance of the first user or the utterance of the second user, and to determine an output time indicating an upper limit of a translation time for the translation, by said first translation Processing unit or said second translation processing unit, of an utterance to be accepted subsequent to the utterance of the first user or the utterance of the second user, and said first translation processing unit or said second translation processing unit is operable to output the first translated utterance information or the second translated utterance information which is a translation result acquired by the output time.