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ihe njikwa usoro
ibuga p: nti mgbali erute, nke a kọwara dị ka iji kọwaa na ihe onwunwe nọgidere mgbe dum piping usoro mgbali dị elu karịa obodo ikuku. were mgbọrọgwụ ikuku mmiri ka ike, elu-mgbali ikuku mix na ihe onwunwe na-eme ka ihe onwunwe eruba na-akpụ akpụ dị ka kwa ịfụ direction.less oriri ike tụnyere ibuga NP.