familiarity英[fəmɪlɪ'ærɪtɪ]美[fə,mɪlɪ'ærəti]n.熟悉,精通;親密;隨便星級詞彙:★英語詞源familiarity(n.)c.1200,"closenessofpersonalassociation,intimacy,"fromOldFrenchfamiliariteanddirectlyfromL......