Her body has become desensitized to the medication.她的身体对药物不再敏感了。Your immune system has been desensitized because it has become used to the substance.你的免疫系统已经因习惯了这种物质而不再敏感。People can become desensitized to violence by endless images of war.人们看了连续不断的战争影像后可能对暴力行为就变得麻木了。