"expose the role" is a grammatically correct and usable phrase in written English.
It means to reveal or make known the role that someone or something plays in a certain situation. Example: The journalist's investigation into government corruption aims to expose the role of powerful officials in manipulating public funds.
It would help expose the role of the state in a dirty campaign to defeat the miners.
The Abu Omar case helped to expose the role US allies, including Italy, played in the rendition programme.
Mario Francese was the first journalist to expose the role of Riina and the Corleonesi within the Sicilian mafia and was killed in 1979.
Instead they expertly expose the role of political institutions, taking readers on a whistle-stop tour through time and space to elucidate their central premise – that prosperity becomes possible only when political institutions are inclusive and power is centralised.
The study is one of the first to expose the role of the search engine rather than social media in drawing people to extremist jihadi material on the web.
Political adverts are held in a public archive, and the tools the company provided made it possible for the Guardian to expose the role played by the staff of Sir Lynton's organisation in the most recent campaigns.
Furthermore, PD173074 exposes the role of FGFR1 in the formation of doublecortin expressing neuroblasts and TBR1 expressing neuroblasts/pioneer neurons.
Oliver Stone interviews Russian President Vladimir Putin, Yanukovych, and others exposing the role the U.S. played in destabilizing the region.
Supporters say the case represents one of the few remaining opportunities they have of exposing the role played by the UK government in rendition.
In Sideshow, William Shawcross exposed the role of Henry Kissinger in Nixon's secret war against Cambodia, and Born on the Fourth of July became a hit film, starring Tom Cruise.
