Interpretation is different from simple translation. Interpreters are expected to conduct a translation, with no room for edits or redactions, based on a one-time exposure to the source material. They are used to translate speeches, conduct meetings in multiple languages, represent people in interviews, and in many other contexts where immediate communication is needed. Professional interpreters are highly trained in specific techniques that enable them to do so, techniques that a bilingual person – someone who speaks fluently in two languages – does not usually possess.