Ibiyobyabwenge bibisi bivuga ibiyobyabwenge bibisi bikoreshwa mugukora imyiteguro itandukanye, nicyo kintu kigira uruhare runini mugutegura, ifu itandukanye, kristu, ibiyikuramo, nibindi bikoreshwa mugukoresha imiti byateguwe na synthèse chimique, gukuramo ibimera cyangwa ibinyabuzima, ariko Subst ...
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