12. A system comprising: an alignment generation module configured to generate a plurality of alignments between a document and a manual translation of the document using a statistical alignment model, the document including at least one tag associated with a first portion of text within the document, the manual translation being a version of the document that has been translated from a first language to a second language by a human translator and that does not include the at least one tag, the second language being different than the first language, each of the plurality of alignments associating the first portion of text within the document to a second portion of text within the manual translation of the document; and a translation control module configured to receive the document and a corresponding request from a user to translate the document from the first language to the second language, receive the manual translation of the document, select one of the plurality of alignments as a selected alignment based on a likelihood that the first portion of text within the document corresponds to the associated second portion of text within the manual translation of the document according to the selected alignment, map a location of the at least one tag in the document to a corresponding location within the manual translation of the document based on the selected alignment, and insert the at least one tag into the manual translation at the corresponding location to obtain a modified manual translation of the document.
12. A system comprising: an alignment generation module configured to generate a plurality of alignments between a document and a manual translation of the document using a statistical alignment model, the document including at least one tag associated with a first portion of text within the document, the manual translation being a version of the document that has been translated from a first language to a second language by a human translator and that does not include the at least one tag, the second language being different than the first language, each of the plurality of alignments associating the first portion of text within the document to a second portion of text within the manual translation of the document; and a translation control module configured to receive the document and a corresponding request from a user to translate the document from the first language to the second language, receive the manual translation of the document, select one of the plurality of alignments as a selected alignment based on a likelihood that the first portion of text within the document corresponds to the associated second portion of text within the manual translation of the document according to the selected alignment, map a location of the at least one tag in the document to a corresponding location within the manual translation of the document based on the selected alignment, and insert the at least one tag into the manual translation at the corresponding location to obtain a modified manual translation of the document. 20. The system of claim 12 , wherein the translation control module is further configured to provide the modified manual translation of the document to the user.