However, the researchers said were limitations to the study, including uncertainties about the underlying health data and gaps in the data relating to exposure to second-hand smoke.
然而，研究者也说明了此研究的局限性，其中包括对基础卫生数据的不确定性、与吸入二手烟相关的数据误差。
The researchers also adjusted their data to consider some factors that could influence a child’s intelligence and skew the results, such as maternal education and second-hand smoke.
研究者们也调整他们的数据考虑一些影响儿童智力的因素并调整结果，例如胎教和二手烟。
The researchers also adjusted their data to consider some factors that could influence a child's intelligence and skew the results, such as maternal education and second-hand smoke.
研究者们也调整他们的数据考虑一些影响儿童智力的因素并调整结果，例如胎教和二手烟。
In the recent few years, overseas research data also suggests that passive smoking or second-hand smoking could be a risk factor for heart diseases.
吸烟会诱发冠心病，近年的数据发现，吸二手烟亦是引致心脏病的高危因素。
The data were collected from field work of in-depth interviews with fourteen laid-off and unemployed workers, as well as second-hand interviews with forty laid-off workers.
这篇文章的经验资料来源于与十四名下岗失业工人的深度访谈以及四十名下岗工人的二手访谈资料。
The data were collected from field work of in-depth interviews with fourteen laid-off and unemployed workers, as well as second-hand interviews with forty laid-off workers.
这篇文章的经验资料来源于与十四名下岗失业工人的深度访谈以及四十名下岗工人的二手访谈资料。
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