To this day the greeting ciao is used in Italy only among peers, family members, and close friends, being considered too informal to use with superiors or strangers.

• 在意大利这个词通常用在同等身份的人之间， 家庭成员间，好朋友之间。很少用在长辈或者上级身上， 也罕用于陌生人身上。