de-escalate
verb [ I or T ] uk/ˌdiːˈes.kə.leɪt/ us/ˌdiːˈes.kə.leɪt/
（使）缓和，（使）缓解
to (cause to) become less dangerous or difficult
The government has taken these measures in an attempt to de-escalate the conflict. 政府已采取这些措施试图缓和冲突。
There are signs that the confrontation is beginning to de-escalate. 有迹象表明对立已经开始缓和。
Synonym: wind (something) down
Opposite: escalate