接种疫苗后，他对这种疾病有了免疫力。

After vaccination, he became ___immune to the disease.

她的乐观态度使她不受负面情绪的影响。

Her optimism made her ___immune to negative emotions.

外交官在大多数情况下免于缴纳当地税款。

Diplomats are usually ___immune from paying local taxes.