Language has its true value only when itis under the process of varying in accordance with social variation.
语言只有在随社会的变化而变异的过程中显示出其作为交流工具的真正价值。
A variation of a gene can influence people's social behavior.
基因的变异会影响人们的社会行为。
These relationships between social and financial performance can be rationalized by multi-factor models for explaining the cross-sectional variation in returns, but not by industry effects.
社会绩效与金融业绩间的这些关系，可以通过解释回报中代表性变量的多因子模型进行合理化，却难以通过产业效应起到同样效果。
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