Space Policy Directive-3 lays out general guidelines for the United States to mitigate the effects of space debris and track and manage traffic in space.
2019年6月六级真题(第二套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
VERB
减轻;缓解;缓和
To mitigate something means to make it less unpleasant, serious, or painful.