Chapter One generalizes the previous studies in the field of color perceptions and color words both at home and abroad.

本文分四章进行阐述：第一章首先回顾国内外学者对颜色词所作的研究。

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No easy task, particularly given the continuing economic uncertainty and vastly different political perceptions at home and abroad about security challenges, the stakes and proper course of action.

BBC: Obama national security team's inbox of problems