Gabaɗaya ana ɗaukar sukulan nadi a matsayin daidaitaccen ƙirar duniya, amma akwai bambance-bambance da yawa, gami da banbanta, sake zagayawa, da jujjuyawar juzu'i. Kowane zane yana ba da fa'idodi na musamman dangane da iyawar aiki (ƙarar nauyi, juzu'i, da matsayi ...
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