53. The language dialogue method as recited in claim 37 , further comprising: parsing a second speech input to obtain at least one second keyword, wherein the second speech input is input by a user after the first speech response is output; and selecting a second report answer other than the at least one first report answer from the candidate list according to the second keyword.
53. The language dialogue method as recited in claim 37 , further comprising: parsing a second speech input to obtain at least one second keyword, wherein the second speech input is input by a user after the first speech response is output; and selecting a second report answer other than the at least one first report answer from the candidate list according to the second keyword. 54. The language dialogue method as recited in claim 53 , further comprising the language comprehension system captures a second user's preference data from the second speech input and revises the user's preference data stored into the properties database according to the second user's preference data.