donum, -i, n., gift Singular Plural Nom. don [ Select ] o us i um don [ Select ] os i a o Gen. don [ Select ] i us o is don [ Select ] orum i os is Dat. don [ Select ] o um i orum don [ Select ] os is orum a Acc. don [ Select ] a um i o don [ Select ] orum is os a Abl. don [ Select ] o a us i don [ Select ] a is orum os多重下拉选择题