Mezue ahịrịokwu na-esonụ:
Expo 2010 Shanghai China, World Cities Day bu ebumnuche iji kwalite mmasị nke mba ụwa na mmepe obodo zuru ụwa ọnụ, na-akwalite imekọ ihe ọnụ n'etiti mba dị iche iche iji zute ohere na ịnagide nsogbu nke mmepe obodo, na inye aka na mmepe obodo na-adigide gburugburu ụwa. Ụbọchị ncheta a jikọtara ya na Sustainable Development Goal 11, iji mee ka obodo dị iche iche "na-agụnye, dị nchebe, na-adịgide adịgide ma na-adịgide adịgide".