外科医生必须完成多年的培训。

___Surgeons must complete many years of training.

获得资格后，她在一家繁忙的城市医院担任外科医生。

After qualifying, she worked as a ___surgeon in a busy city hospital.

外科医生在复杂的手术中成功切除了肿瘤。

The ___surgeon successfully removed the tumour during the complex operation.