immune

adj.

1. 免疫的, 有免疫力的; 不受影响的
   • I am immune from the disease, for I had it once.
     我对这病有免疫力, 因为我已得过一次了。
2. 免除…的, 豁免的
   • Being the only son in the family, the young man was immune from military service.
     由于是独子, 那个年轻人被免于服兵役。