<prompt> Pedzisa mutsara unotevera: Milan, Italy, yakabata World Expo yapfuura  <response>: muna 2015, nepo Nur-Sultan, Kazakhstan, yakabata iyo ichangoburwa Specialized Expo muna 2017. Dubai, United Arab Emirates, yakasarudzwa kuitisa World Expo inotevera muna 2020, asi nekuda kwedenda re COVID-19 rakamiswa kuenda muna 2021. Guta reBuenos Aires, kuArgentina, iro rakanga rasarudzwa kuti riitire musangano unotevera weSpecialised Expo muna 2023, rakazivisa kubvisa kwaro musangano uyu risina kana zuva rakarongwazve. 