Mwachidule, singano zing'onozing'onozi zimagwiritsidwa ntchito kuboola cuticle pamwamba pa khungu pa nthawi yochepa, kotero kuti mankhwala (kuyera, kukonza, anti-kutupa ndi zigawo zina) akhoza kulowa mkati mwa khungu, kotero kuti kukwaniritsa zolinga zoyera, kuchotsa makwinya, ziphuphu ...
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