familiarity英[fəmɪlɪ'ærɪtɪ]美[fə,mɪlɪ'ærəti]n.熟悉,精通;亲密;随便星级词汇:★英语词源familiarity(n.)c.1200,"closenessofpersonalassociation,intimacy,"fromOldFrenchfamiliariteanddirectlyfromL......