N'ime afọ 20 na-esote, anyị ga-aga n'ihu na-arụ ọrụ nke ịnọgide na-aga n'ihu na teknụzụ kachasị ọhụrụ, na-enye ngwaahịa ndị a pụrụ ịdabere na ya, na-eme nchọpụta na nyocha nke ozone ngwa na ịba ụba BNP ozone ngwaahịa nso maka ngwa ngwa.
Oge nzipu: Jun-11-2018