Igwe nrịbama pneumatic, nke nwere ike itinye akara na ngwaahịa, na-adịwanye mkpa. Ha na-akara ngwaahịa nwere akara ngosi pụrụ iche ma na-egbochi “copycats” nke ọma. N'otu oge ahụ, ha nwekwara ike ịrụ ọrụ nkwado maka ngwaahịa. Mgbe enwere nsogbu, ha nwere ike ...
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