研究者总结到,对“专门的怀孕相关的重量增加、生活方式因素和社会经济状况改变”进行研究以后,我们才能更好的理解它们的联系。
The investigators conclude that the association may be better understood after studies of "specific, pregnancy-related weight gain measures, lifestyle factors and changes in socioeconomic status."
如果这不代表全球经济状况发生了任何改变的话,那么它究竟反映了什么呢?
If this does not point to any change in global economic conditions, what does it reflect?
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