单词	羊齒植物學
释义	羊齒植物學1. pteridology
随便看	polyvalent number polyvalent officer polyvalent retreatment plant polyvalents polyvalent serum polyvalent vaccine polyvalent--vaccine polyvanadate polyvanadic acid polyvariant system poly v belt polyversity polyvinyl polyvinyl acetal polyvinylacetal polyvinylacetal (pva) poly(vinyl acetate) polyvinyl acetate polyvinyl-acetate adhesive polyvinyl-acetate adhesive{=pva} polyvinylacetate emulsion polyvinyl acetate phthalate polyvinyl acetate phthalate {=pvap} poly(vinyl acetate) {= pvac} polyvinyl alchol