Nkebi ahịrịokwu nke mbụ: Ugwu Cascade bụ ụyọkọ ugwu mgbawa nke dị na Twin Buttes nke Shasta County, California. Nkebi ahịrịokwu nke abụọ: Twin Buttes bụ ìgwè nke cinder cones nke ugwu mgbawa na Cascade Mountain Range site na Shasta County, California. Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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