卵巢癌是死亡率最高的一种疾病，其癌变早期毫无症状，一旦有临床症状时，往往已到晚期，所以其危险度不可小视。
Ovarian cancer is the highest mortality rates a kind of disease, the cancerous early symptoms, once there is no clinical symptoms, often has to late, so its risk can not be ignored.
胰腺癌患者存活率低的部分原因是由于它的症状并不明显(主要是出现黄疸)，往往是癌症已到晚期无法进行手术治疗时才被发现。
Pancreatic cancer has a low survival rate partly because its symptoms, which can include jaundice, often don't show up until the cancer is advanced and untreatable by surgery.
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