vt.
使缓和，使温和，使镇静：
to mitigate danger
缓和危险
减轻(痛苦、惩罚)：
The judge said that nothing could mitigate the cruelty with which the mother had treated her child.
法官说，这位母亲虐待孩子，罪行无法减轻。
new economic measures to help mitigate the effects of the recession
有助于减轻经济衰退影响的新经