clear the air idiom          
 使空气清新
to make the air cooler, fresher, and more comfortable
  The rain has helped clear the air. 这场雨使空气变得清新了。 
 C2 消除怨愤;消除隔阂
to remove the bad feelings between people
  I had a massive argument with Sue, but at least it has cleared the air. 我和苏大吵了一通,不过这至少消除了误解。