She and her team based their research on observation, interviews, surveys of users' homes and asking people to keep logbooks of their communications usage in several European countries.
她和她的小组通过观察、访问、调查用户的家人并要求他们保留在不同欧洲国家的通话记录。
She and her team based their research on observation, interviews, surveys of users' homes and asking people to keep logbooks of their communications usage in several European countries.
她和她的小组通过观察、访问、调查用户的家人并要求他们保留在不同欧洲国家的通话记录。
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