"Mgbe oke gafere n'okporo ụzọ, onye ọ bụla na-eti mkpu ma tie ha ihe."Ihe na-egbochi oke bụ isi ọwụwa mgbe niile maka ọtụtụ ụlọ ọrụ ma ọ bụ ụlọ ọrụ nri.Ngwaọrụ na-egbochi oke oke nke Ultrasonic na-enyere aka dozie nsogbu nke oke oke oke.Mana gbasara ihe na-egbochi oke ultrasonic, ọtụtụ ndị anaghị…
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