They call this friend-to-friend ( F2F ) data sharing .
他们要求这位朋友到朋友（F2F）数据共享。
F2F is a professional color cosmetic product developed for professional make-up artist , it is the perfect combination of professional and daily make-up .
是一款定位在中高端专业彩妆市场，是专业彩妆与日常彩妆完美结合的典范。
E-mail and Meeting F2F
电子邮件与面对面
F2F