GRE：核心词组之in,light,of:greenlight什么意思

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in (the) light of 考虑到，根据
　　释义
　　If something is possible in the light of particular information, it is only possible because you have this information.
　　例句
　　In light of this economic depression, a mass layoff is about to happen.
　　GRE
　　Only in the case of the February Revolution do we lack a useful description of participants that might characterize it in the light of what social history has taught us about the process of revolutionary mobilization.
　　只有在二月革命这个例子中我们缺乏对于参与者的有用描述，而基于社会历史有关革命动员过程能教给我们的内容，这些描述有可能勾勒出这场革命的性质。