诊断专家

例句：

1. 1.The doctor performed a thorough diagnostic examination of the patient's symptoms.
   医生对病人的症状进行了彻底的诊断检查。
2. 2. The pathologist used his expertise to diagnose the cause of the patient's illness.
   病理学家利用他的专业知识来诊断病人的疾病原因。
3. 3. Diagnosis is the process of determining the nature and extent of a disease or condition.
   诊断是确定疾病或状况的性质和范围的过程。