Original sentence: The Río de la Plata (, River of Silver)—sometimes rendered River Plate in British English and the Commonwealth, and occasionally rendered [La] Plata River in other English-speaking countries—is the river and estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay
Edited sentence: The Río de la Plata (, River of Silver)—sometimes rendered River Plate in British English and the Commonwealth, and occasionally rendered [La] Plata River in other English-speaking countries—is the widest river in the world, formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay