They ranked 149 countries, and left the remaining 50 or so off the list for insufficient data.
他们排名了149个国家，剩余的50个左右因为不充足的数据而被排除在列表之外。
The study looked at practices like backing up data, using password protection, and running virus scans, and ranked 35 big cities across the U.S. based on its survey.
此研究涉及的调查项目包括数据备份，用户密码保护以及运行病毒扫描，根据其调查结果对美国35个大城市进行了排名。
In total, the NRF ranked 46 stores, and will release that data in January.
全美零售联盟总共对46家商店进行了排名，并将于明年1月份发布排名信息。
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