Definition: not affected by a particular type of behaviour or emotion Level: C2
她似乎对批评免疫。
She seems ___immune to criticism.
经过多年接触，他们对坏消息已经免疫。
After years of exposure, they have become ___immune to bad news.
他乐观的天性使他对悲观情绪免疫。
His optimistic nature makes him ___immune to pessimism.
