The information may be available in the form of secondary data and primary data.
信息可以通过二手资料和原始资料的形式而得到。
Market data and analytics are derived from primary and secondary research.
市场数据和分析均来自小学和中学的研究。
Research has been undertaken using secondary and primary data collection methods.
使用二级和初级数据收集方法进行了研究。
Research has been undertaken using secondary and primary data collection methods.
使用二级和初级数据收集方法进行了研究。
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