private antigen

例句：

1. 1. The private investigator was hired to find the missing child.
   私人侦探被雇佣来寻找失踪的孩子。
2. 2. Private companies are not allowed to operate in certain areas.
   私人公司不允许在某些地区经营。
3. 3. He prefers to work with his own private team of experts.
   他更喜欢和他的私人专家团队一起工作。