The third factor is a sense of pride in country and unity with other citizens.
VOA: special.2009.12.19
You measure health and you measure a factor like diet, you measure other factors that might be related as well.
你衡量其健康及饮食,还有很多其他可能有关的因素
"So if you have hoarseness with tobacco or alcohol use, that would be a significant risk factor for cancer or other problems of the throat that could be serious.
VOA: special.2009.09.02
But the report singles out food production as the other major factor driving environmental degradation.
VOA: standard.2010.06.04
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