Is it possible to enjoy a peaceful life in a world that is increasingly challenged by threats and uncertainties from wars, terrorism, economic crises and a widespread outbreak of infectious diseases?
2016年6月四级真题（第二套）阅读 Section B
英语六级真题
Two world wars and a Great Depression rocked the confidence of many people that scientific expertise alone could create a prosperous and ordered world.
出自-2010年12月阅读原文
柯林斯高阶英汉双解学习词典释义
N-VAR
战争
A war is a period of fighting or conflict between countries or states.