Research can be carried out using secondary data – information that already exists and is publicly available – and primary data – information collected for a specific purpose.
可以使用二手数据（已经存在且公开可用的信息）和原始数据（为特定目的收集的信息）进行研究。
| 单词 | Secondary Data |
| 释义 |
Secondary Data
原声例句
Business Vocabulary in Use Advanced 3rd Ed Research can be carried out using secondary data – information that already exists and is publicly available – and primary data – information collected for a specific purpose. 可以使用二手数据（已经存在且公开可用的信息）和原始数据（为特定目的收集的信息）进行研究。
英语百科
Secondary dataSecondary data refers to data that was collected by someone other than the user. Common sources of secondary data for social science include censuses, information collected by government departments, organisational records and data that was originally collected for other research purposes. Primary data, by contrast, are collected by the investigator conducting the research. |
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