Complex sentence: Laurier has several other campuses, such as in Toronto, Ontario (Canada's largest city), Brantford, Ontario, Kitchener and in Chongqing, China (a city of close to 30 million people).
Split into simpler sentences: Laurier has several other campuses, such as in Toronto, Ontario (Canada's largest city), Brantford, Ontario, Kitchener. Ontario and in Chongqing, China (a city of close to 30 million people).