A na-eji oven ihicha oghere n'ọtụtụ ebe na ngwa nyocha dị ka biochemistry, ụlọ ọgwụ kemịkalụ, ahụike na ahụike, nyocha ọrụ ugbo, nchekwa gburugburu ebe obibi, wdg, ọkachasị maka ihicha ntụ ntụ, ịsa achịcha, na mkpocha na igba ogwu nke iko dị iche iche.
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