biopsy

例句：

1. 1.The doctor performed a biopsy on the mole to determine its cause.
   医生对痣进行了活体检查以确定其原因。
2. 2. The patient underwent a biopsy to confirm the diagnosis of cancer.
   患者接受了活检以确认癌症的诊断。
3. 3.The surgeon performed a biopsy to remove the tumor from the patient's leg.
   外科医生进行了活检以从患者的腿上取出肿瘤。