cytolgical examination

例句：

1. 1. Cytological examination is a crucialstep in the diagnosis of cancer.
   细胞学检查是诊断癌症的关键步骤。
2. 2. The cytological study of the cells revealed new insightsinto the disease.
   对细胞的细胞学研究揭示了对疾病的新见解。
3. 3. The cytological examination of the tissue samples confirmed thepresence of the virus.
   组织样本的细胞学检查确认了病毒的存在。