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W/R yog lub npe luv rau cov tshuaj tiv thaiv dej.W/P yog cov ntawv luv rau cov dej tsis zoo.Cov tshuaj tiv thaiv dej feem ntau yog ntxiv nrog cov tshuaj tiv thaiv dej thaum cov ntaub zoo li tus.Tom qab cov ntaub qhuav lawm, ib zaj duab xis hydrophobic yuav tsim rau ntawm daim ntaub.Hauv qhov no, cov dej ntws yuav tsis muaj ...Nyeem ntxiv»
