Do translation through interlingua, i.e.\ by first applying source-to-interlingua rules (from the file that {\tt to\_\-interlingua\_\-rules} points to) and then interlingua-to-target rules ((from the file that {\tt from\_\-interlingua\_\-rules} points to). This applies both to interactive processing in translate mode, and to batch processing using commands like {\tt TRANSLATE\_\-CORPUS}, {\tt TRANSLATE\_\-SPEECH\_\-CORPUS} and {\tt TRANSLATE\_\-SPEECH\_\-CORPUS\_\-AGAIN}.