mitigate damage减轻破坏
mitigate e减轻;使减轻
mitigate offensive缓和攻势
Mitigate pollution减少污染
mitigate sth调和或减轻某事物的作用
mitigate exacerbate缓和
After Wu Zetian chose Li as the successor of her,in order to let Wu keep power after she was dead,she took measures such as be united by marriage to mitigate the contradiction between Li and Wu.
武则天在确立李氏作为自己的继承人之后,为了使武氏宗族在她身后能够继续保持权位,采取了联姻、立誓等一系列措施缓和李武两家之间的矛盾。
参考来源 - 试论唐朝从中宗到睿宗时期的政局演变V-T（及物动词） To mitigate something means to make it less unpleasant, serious, or painful. 缓解 [正式]
...ways of mitigating the effects of an explosion.
…减轻爆炸后果的方法。