tumor

The surgeon performed a biopsy to determine if the tumor in the patient's brain was benign or malignant.

(Chinese) 外科医生进行了活检，以确定患者脑部的肿瘤是良性还是恶性。

Modern radiotherapy uses targeted beams to shrink the tumor while minimizing damage to healthy surrounding tissue.

(Chinese) 现代放射疗法使用针对性射线来缩小肿瘤，同时最大限度地减少对周围健康组织的伤害。