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。
Informed consent is a basic requirement for mental health researchers and practitioners, both online and f2f.
知情同意是对在线及面对面心理健康研究者与从业者的一个基本要求。
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。
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。
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