Nke mbụ, dozie efere mmiri, tinye ngaji abụọ nke nnu n'ime ya, nnu nwere mmetụta nke ịgba ọgwụ mgbochi ọrịa, nwere ike inye ọgwụ mgbochi mmiri, gbuo nje bacteria dị n'elu, wee gbakwunye obere mpempe akwụkwọ nke ịsacha efere, ihe nhicha efere nwere ike inye aka. anyi hichaa unyi na t...
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