radiotherapy
🇺🇸
/ˌreɪdiəʊˈθerəpi/
🇬🇧
/ˌreɪdiəʊˈθerəpi/
A medical treatment that uses radiation to kill or shrink cancer cells.
The doctor recommended a course of radiotherapy to treat the tumor.
醫生建議進行放射療法治療腫瘤。