hunn
vereedelt
transitiv
veredeln
épurer améliorer
to refine to improve
apurar melhorar
en Expert mengt, déi Method, fir de Biogas ze vereedelen , 1 wier ze deier
https://lod.lu/uploads/examples/OGG/1c/1c499b8fbbfb7538cdb4e65ab8782a70.ogg
https://lod.lu/uploads/examples/AAC/1c/1c499b8fbbfb7538cdb4e65ab8782a70.m4a
d' Praffen 1 ass eng al Method, fir Uebstbeem ze vereedelen