In the last few decades of the 20th century, living standards went up and economic depressions were largely averted in the US.
2019年12月六级真题（第一套）阅读 Section B
Not all casualties can necessarily be prevented一but by coordinating across local, state, and even national borders, officials hope that the worst-case scenario can be averted.
2019年12月六级真题（第一套）阅读 Section C
柯林斯高阶英汉双解学习词典释义
VERB
避免;阻止;防止
If you avert something unpleasant, you prevent it from happening.