hydroxylurea

例句：

1. 1. The patient was given hydroxylurea for the treatment of his cancer.
   患者被给予羟基脲治疗他的癌症。
2. 2.The drug is a derivative of hydroxylurea that has been shown to be effective in treating certain types of cancer.
   这种药物是羟基脲的衍生物，已被证明对某些类型的癌症有效。
3. 3.Due to its antitumor activity, hydroxylurea is often used as a chemotherapy agent in cancer treatment.
   由于其抗肿瘤活性，羟基脲常作为化疗药物用于癌症治疗。