n.瘤;
例句:
A surgeon removed the boy's brain tumor.
一位外科医生为这男孩摘除了脑肿瘤.
Meanwhile the untreated tumor is still growing.
这时未经治疗的肿瘤还继续生长.
The tumor may prolapse through the orifice.
肿瘤可脱出幽门口.