Nkebi ahịrịokwu nke mbụ: N'ala ala nke hydrometer ahụ, e nwere bọmbụ e ji atụ̀ ihe, n'elu ya kwa, e nwere ite e ji atụ̀ ihe ndị na - adịchaghị arọ. Nkebi ahịrịokwu nke abụọ: N'ala ala nke hydrometer ahụ, e nwere bọlbụ ọkụ a tụrụ atụ̀, n'elu ya kwa, e nwere ebe a na - esi nri maka obere ihe ndị a tụrụ atụ̀. Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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