Vena testicularis sinistra

例句：

1. 1. The doctor performed a biopsy on the patient's left testicle to investigate the cause of his persistent pain.
   医生对患者的左侧睾丸进行了活检，以调查他持续疼痛的原因。
2. 2. During surgery, the surgeon carefully dissected the vena testicularis sinistra to avoid damaging the blood vessels.
   在手术过程中，外科医生小心地解剖了左侧睾丸静脉，以避免损伤血管。
3. 3. The patient was advised to exercise regularly to prevent the development of varicose veinsin the vena testicularis sinistra.
   患者被建议定期锻炼，以防止左侧睾丸静脉出现静脉曲张。