intervane

例句：

1. 1. The government's decision to intervene in the economy has caused much controversy.
   政府决定干预经济引发了很多争议。
2. 2. He intervened to stop the fight before it could escalate.
   他介入阻止了这场争斗升级。
3. 3. She intervened when her friend was being mistreated by a bully.
   当她的朋友被一个恶霸欺负时，她介入了。