Kedu mgbe mgbapụta Vacuum na-erite uru engine? Igwe mgbapụta agụụ, n'ozuzu, bụ uru agbakwunyere na injin ọ bụla nke nwere oke arụmọrụ zuru oke iji mepụta oke nke ịfụ. Igwe mgbapụta agụụ ga-, n'ozuzu, tinye ụfọdụ ike inyinya, mụbaa ndụ injin, mee ka mmanụ dị ọcha ogologo oge. Kedu ka Vacuum...
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